Launch in context is definitely the way to go when you want to open a new browser tab to a different application and have some data on the record you need to use. The fact that the hyperlink isn't visible when the signature option is associated implies that the security change hasn't taken effect. Maximo security changes can be painful, because if that user has more than one session logging out and logging back in won't address the issue.

The signature option is critical in launch in context, because it's how the launch in context is associated to the button/hyperlink. You didn't attach a screenshot but I assume you configured that when you created your signature option. 

Launch in context is definitely the way to go when you want to open a new browser tab to a different application and have some data on the record you need to use. The fact that the hyperlink isn't visible when the signature option is associated implies that the security change hasn't taken effect. Maximo security changes can be painful, because if that user has more than one session logging out and logging back in won't address the issue.

The signature option is critical in launch in context, because it's how the launch in context is associated to the button/hyperlink. You didn't attach a screenshot but I assume you configured that when you created your signature option. 

Launch in context is definitely the way to go when you want to open a new browser tab to a different application and have some data on the record you need to use. The fact that the hyperlink isn't visible when the signature option is associated implies that the security change hasn't taken effect. Maximo security changes can be painful, because if that user has more than one session logging out and logging back in won't address the issue.

The signature option is critical in launch in context, because it's how the launch in context is associated to the button/hyperlink. You didn't attach a screenshot but I assume you configured that when you created your signature option. 

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

Correct, if you're using a publish channel the publish channel invokes the endpoint. There are some use cases where it makes sense to invoke an endpoint from an automation script instead of utilizing a publish channel. Publish channels queue up messages and then try to send to the external system (the user isn't aware of success or failure). This can be a plus, but other times it's critical that the integration occurs immediately or the transaction inside of Maximo fails (change status is rolled back, labor transaction isn't saved, etc.). That's not possible with a publish channel. Less importantly, other systems can't process a Maximo message, so you have to transform the XML/JSON message into a format the other can consume and it's sometimes easier to build it directly as you need in a script instead of transforming. 

I want to preface this with I haven't done this, but this is something we are planning to look at doing to improve some of our integrations.

HTTP endpoints have a HTTPEXIT property that allows you to set a Java class (typically). What most people aren't aware of is you are supposed to be able to set it to script:SCRIPTNAME (replacing SCRIPTNAME with your automation script name) and that will invoke your script.

I have never seen this fully documented on how to do it end to end, but there is some info such as how to declare your script that can be found here: HTTP handler (ibm.com)

First things first, your script needs to be set to "Allow invoking methods" or else it won't work. Secondly inside your script you need to declare a function that matches what they're looking for. For example, if you wanted to control the header and were using python, you should have something like this:
def headerProps():
    # Your logic here

Depending on your function will determine what gets stored in an invokeArgs implicit variable (that is an object array). For the header it looks like Maximo declares a ScriptHTTPReq class that it puts in an object array that gets stored in the invokeArgs that you can reference in your script. Once you get that ScriptHTTPReq class you can call methods such as addHeader(name,value) with the appropriate header name and value that you want to add to the HTTP request and it should modify it.

If you haven't gotten comfortable with it, I would recommend using a java decompiler as it's easier to understand what's possible and what's going on in situations like this that aren't very well documented.

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

Correct, if you're using a publish channel the publish channel invokes the endpoint. There are some use cases where it makes sense to invoke an endpoint from an automation script instead of utilizing a publish channel. Publish channels queue up messages and then try to send to the external system (the user isn't aware of success or failure). This can be a plus, but other times it's critical that the integration occurs immediately or the transaction inside of Maximo fails (change status is rolled back, labor transaction isn't saved, etc.). That's not possible with a publish channel. Less importantly, other systems can't process a Maximo message, so you have to transform the XML/JSON message into a format the other can consume and it's sometimes easier to build it directly as you need in a script instead of transforming. 

I want to preface this with I haven't done this, but this is something we are planning to look at doing to improve some of our integrations.

HTTP endpoints have a HTTPEXIT property that allows you to set a Java class (typically). What most people aren't aware of is you are supposed to be able to set it to script:SCRIPTNAME (replacing SCRIPTNAME with your automation script name) and that will invoke your script.

I have never seen this fully documented on how to do it end to end, but there is some info such as how to declare your script that can be found here: HTTP handler (ibm.com)

First things first, your script needs to be set to "Allow invoking methods" or else it won't work. Secondly inside your script you need to declare a function that matches what they're looking for. For example, if you wanted to control the header and were using python, you should have something like this:
def headerProps():
    # Your logic here

Depending on your function will determine what gets stored in an invokeArgs implicit variable (that is an object array). For the header it looks like Maximo declares a ScriptHTTPReq class that it puts in an object array that gets stored in the invokeArgs that you can reference in your script. Once you get that ScriptHTTPReq class you can call methods such as addHeader(name,value) with the appropriate header name and value that you want to add to the HTTP request and it should modify it.

If you haven't gotten comfortable with it, I would recommend using a java decompiler as it's easier to understand what's possible and what's going on in situations like this that aren't very well documented.

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

Thank you so much @Anamitra Bhattacharyya and @Steven Shull! Both suggestions provoked a lot of ideas and lead me to a solution that is 98% there. A few follow ups:

1) I used Anamitra's suggestion to dynamically update the endpoint properties on Publish Channel exit. This worked wonderfully for OAUTH2.0.

# Grab OAUTH Access Token
map = HashMap()
body='client_id=MYIDHERE&client_secret=MYSECRETHERE&resource=https://blahblah.dynamics.com&grant_type=client_credentials'
response=service.invokeEndpoint("365OAUTH",map,body)
responseObject=JSONObject.parse(response)
tkn=responseObject.get("access_token")

I then use that token string to dynamically build my header for my HTTP endpoint.

mapPOST = HashMap()
mapPOST.put("HEADERS","Content-Type:application/json,OData-MaxVersion:4.0,OData-Version:4.0,Authorization:Bearer "+tkn)
IntegrationContext.getCurrentContext().setProperty(MetaDataProperties.ENDPOINTPROPS, mapPOST)

This works great! Only issue is if the message fails. It is great that it ends up in message reprocessing (exactly what I wanted) but it appears that reprocessing doesn't trigger my publish channel script again so reprocessing will always fail because the token is obviously missing from the header on my HTTP endpoint.

My first thought was I could just update the actual endpoint properties to include the header+token and save it to the MBO. However, I'm not sure if it can actually save the entire token? When trying to manually paste the token into the headers via the UI, the field wasn't big enough to hold all that text. Would I run into that problem if I tried to save this token value via code? It obviously works dynamically, guessing the same size restriction doesn't exist when doing it entirely in code.

My next thought is I may have to move this dynamic endpoint property code down a level from Publish Channel exit to endpoint? That is the only way I think it would work when the message fails and is stuck in message reprocessing?
​​

Correct, if you're using a publish channel the publish channel invokes the endpoint. There are some use cases where it makes sense to invoke an endpoint from an automation script instead of utilizing a publish channel. Publish channels queue up messages and then try to send to the external system (the user isn't aware of success or failure). This can be a plus, but other times it's critical that the integration occurs immediately or the transaction inside of Maximo fails (change status is rolled back, labor transaction isn't saved, etc.). That's not possible with a publish channel. Less importantly, other systems can't process a Maximo message, so you have to transform the XML/JSON message into a format the other can consume and it's sometimes easier to build it directly as you need in a script instead of transforming. 

I want to preface this with I haven't done this, but this is something we are planning to look at doing to improve some of our integrations.

HTTP endpoints have a HTTPEXIT property that allows you to set a Java class (typically). What most people aren't aware of is you are supposed to be able to set it to script:SCRIPTNAME (replacing SCRIPTNAME with your automation script name) and that will invoke your script.

I have never seen this fully documented on how to do it end to end, but there is some info such as how to declare your script that can be found here: HTTP handler (ibm.com)

First things first, your script needs to be set to "Allow invoking methods" or else it won't work. Secondly inside your script you need to declare a function that matches what they're looking for. For example, if you wanted to control the header and were using python, you should have something like this:
def headerProps():
    # Your logic here

Depending on your function will determine what gets stored in an invokeArgs implicit variable (that is an object array). For the header it looks like Maximo declares a ScriptHTTPReq class that it puts in an object array that gets stored in the invokeArgs that you can reference in your script. Once you get that ScriptHTTPReq class you can call methods such as addHeader(name,value) with the appropriate header name and value that you want to add to the HTTP request and it should modify it.

If you haven't gotten comfortable with it, I would recommend using a java decompiler as it's easier to understand what's possible and what's going on in situations like this that aren't very well documented.

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

Thank you so much @Anamitra Bhattacharyya and @Steven Shull! Both suggestions provoked a lot of ideas and lead me to a solution that is 98% there. A few follow ups:

1) I used Anamitra's suggestion to dynamically update the endpoint properties on Publish Channel exit. This worked wonderfully for OAUTH2.0.

# Grab OAUTH Access Token
map = HashMap()
body='client_id=MYIDHERE&client_secret=MYSECRETHERE&resource=https://blahblah.dynamics.com&grant_type=client_credentials'
response=service.invokeEndpoint("365OAUTH",map,body)
responseObject=JSONObject.parse(response)
tkn=responseObject.get("access_token")

I then use that token string to dynamically build my header for my HTTP endpoint.

mapPOST = HashMap()
mapPOST.put("HEADERS","Content-Type:application/json,OData-MaxVersion:4.0,OData-Version:4.0,Authorization:Bearer "+tkn)
IntegrationContext.getCurrentContext().setProperty(MetaDataProperties.ENDPOINTPROPS, mapPOST)

This works great! Only issue is if the message fails. It is great that it ends up in message reprocessing (exactly what I wanted) but it appears that reprocessing doesn't trigger my publish channel script again so reprocessing will always fail because the token is obviously missing from the header on my HTTP endpoint.

My first thought was I could just update the actual endpoint properties to include the header+token and save it to the MBO. However, I'm not sure if it can actually save the entire token? When trying to manually paste the token into the headers via the UI, the field wasn't big enough to hold all that text. Would I run into that problem if I tried to save this token value via code? It obviously works dynamically, guessing the same size restriction doesn't exist when doing it entirely in code.

My next thought is I may have to move this dynamic endpoint property code down a level from Publish Channel exit to endpoint? That is the only way I think it would work when the message fails and is stuck in message reprocessing?
​​

Correct, if you're using a publish channel the publish channel invokes the endpoint. There are some use cases where it makes sense to invoke an endpoint from an automation script instead of utilizing a publish channel. Publish channels queue up messages and then try to send to the external system (the user isn't aware of success or failure). This can be a plus, but other times it's critical that the integration occurs immediately or the transaction inside of Maximo fails (change status is rolled back, labor transaction isn't saved, etc.). That's not possible with a publish channel. Less importantly, other systems can't process a Maximo message, so you have to transform the XML/JSON message into a format the other can consume and it's sometimes easier to build it directly as you need in a script instead of transforming. 

I want to preface this with I haven't done this, but this is something we are planning to look at doing to improve some of our integrations.

HTTP endpoints have a HTTPEXIT property that allows you to set a Java class (typically). What most people aren't aware of is you are supposed to be able to set it to script:SCRIPTNAME (replacing SCRIPTNAME with your automation script name) and that will invoke your script.

I have never seen this fully documented on how to do it end to end, but there is some info such as how to declare your script that can be found here: HTTP handler (ibm.com)

First things first, your script needs to be set to "Allow invoking methods" or else it won't work. Secondly inside your script you need to declare a function that matches what they're looking for. For example, if you wanted to control the header and were using python, you should have something like this:
def headerProps():
    # Your logic here

Depending on your function will determine what gets stored in an invokeArgs implicit variable (that is an object array). For the header it looks like Maximo declares a ScriptHTTPReq class that it puts in an object array that gets stored in the invokeArgs that you can reference in your script. Once you get that ScriptHTTPReq class you can call methods such as addHeader(name,value) with the appropriate header name and value that you want to add to the HTTP request and it should modify it.

If you haven't gotten comfortable with it, I would recommend using a java decompiler as it's easier to understand what's possible and what's going on in situations like this that aren't very well documented.

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

Thank you so much @Anamitra Bhattacharyya and @Steven Shull! Both suggestions provoked a lot of ideas and lead me to a solution that is 98% there. A few follow ups:

1) I used Anamitra's suggestion to dynamically update the endpoint properties on Publish Channel exit. This worked wonderfully for OAUTH2.0.

# Grab OAUTH Access Token
map = HashMap()
body='client_id=MYIDHERE&client_secret=MYSECRETHERE&resource=https://blahblah.dynamics.com&grant_type=client_credentials'
response=service.invokeEndpoint("365OAUTH",map,body)
responseObject=JSONObject.parse(response)
tkn=responseObject.get("access_token")

I then use that token string to dynamically build my header for my HTTP endpoint.

mapPOST = HashMap()
mapPOST.put("HEADERS","Content-Type:application/json,OData-MaxVersion:4.0,OData-Version:4.0,Authorization:Bearer "+tkn)
IntegrationContext.getCurrentContext().setProperty(MetaDataProperties.ENDPOINTPROPS, mapPOST)

This works great! Only issue is if the message fails. It is great that it ends up in message reprocessing (exactly what I wanted) but it appears that reprocessing doesn't trigger my publish channel script again so reprocessing will always fail because the token is obviously missing from the header on my HTTP endpoint.

My first thought was I could just update the actual endpoint properties to include the header+token and save it to the MBO. However, I'm not sure if it can actually save the entire token? When trying to manually paste the token into the headers via the UI, the field wasn't big enough to hold all that text. Would I run into that problem if I tried to save this token value via code? It obviously works dynamically, guessing the same size restriction doesn't exist when doing it entirely in code.

My next thought is I may have to move this dynamic endpoint property code down a level from Publish Channel exit to endpoint? That is the only way I think it would work when the message fails and is stuck in message reprocessing?
​​

Correct, if you're using a publish channel the publish channel invokes the endpoint. There are some use cases where it makes sense to invoke an endpoint from an automation script instead of utilizing a publish channel. Publish channels queue up messages and then try to send to the external system (the user isn't aware of success or failure). This can be a plus, but other times it's critical that the integration occurs immediately or the transaction inside of Maximo fails (change status is rolled back, labor transaction isn't saved, etc.). That's not possible with a publish channel. Less importantly, other systems can't process a Maximo message, so you have to transform the XML/JSON message into a format the other can consume and it's sometimes easier to build it directly as you need in a script instead of transforming. 

I want to preface this with I haven't done this, but this is something we are planning to look at doing to improve some of our integrations.

HTTP endpoints have a HTTPEXIT property that allows you to set a Java class (typically). What most people aren't aware of is you are supposed to be able to set it to script:SCRIPTNAME (replacing SCRIPTNAME with your automation script name) and that will invoke your script.

I have never seen this fully documented on how to do it end to end, but there is some info such as how to declare your script that can be found here: HTTP handler (ibm.com)

First things first, your script needs to be set to "Allow invoking methods" or else it won't work. Secondly inside your script you need to declare a function that matches what they're looking for. For example, if you wanted to control the header and were using python, you should have something like this:
def headerProps():
    # Your logic here

Depending on your function will determine what gets stored in an invokeArgs implicit variable (that is an object array). For the header it looks like Maximo declares a ScriptHTTPReq class that it puts in an object array that gets stored in the invokeArgs that you can reference in your script. Once you get that ScriptHTTPReq class you can call methods such as addHeader(name,value) with the appropriate header name and value that you want to add to the HTTP request and it should modify it.

If you haven't gotten comfortable with it, I would recommend using a java decompiler as it's easier to understand what's possible and what's going on in situations like this that aren't very well documented.

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

My guess is that is your issue. As for the invokeArgs, I believe you should just be able to get the java class using something like:

scriptReq=invokeArgs[0]

And then call the function (such as adding a header) like:

scriptReq.addHeader(name,value)

If that still doesn't work let me know and I'll try and build a similar test in our demo apps.

Thank you so much @Anamitra Bhattacharyya and @Steven Shull! Both suggestions provoked a lot of ideas and lead me to a solution that is 98% there. A few follow ups:

1) I used Anamitra's suggestion to dynamically update the endpoint properties on Publish Channel exit. This worked wonderfully for OAUTH2.0.

# Grab OAUTH Access Token
map = HashMap()
body='client_id=MYIDHERE&client_secret=MYSECRETHERE&resource=https://blahblah.dynamics.com&grant_type=client_credentials'
response=service.invokeEndpoint("365OAUTH",map,body)
responseObject=JSONObject.parse(response)
tkn=responseObject.get("access_token")

I then use that token string to dynamically build my header for my HTTP endpoint.

mapPOST = HashMap()
mapPOST.put("HEADERS","Content-Type:application/json,OData-MaxVersion:4.0,OData-Version:4.0,Authorization:Bearer "+tkn)
IntegrationContext.getCurrentContext().setProperty(MetaDataProperties.ENDPOINTPROPS, mapPOST)

This works great! Only issue is if the message fails. It is great that it ends up in message reprocessing (exactly what I wanted) but it appears that reprocessing doesn't trigger my publish channel script again so reprocessing will always fail because the token is obviously missing from the header on my HTTP endpoint.

My first thought was I could just update the actual endpoint properties to include the header+token and save it to the MBO. However, I'm not sure if it can actually save the entire token? When trying to manually paste the token into the headers via the UI, the field wasn't big enough to hold all that text. Would I run into that problem if I tried to save this token value via code? It obviously works dynamically, guessing the same size restriction doesn't exist when doing it entirely in code.

My next thought is I may have to move this dynamic endpoint property code down a level from Publish Channel exit to endpoint? That is the only way I think it would work when the message fails and is stuck in message reprocessing?
​​

Correct, if you're using a publish channel the publish channel invokes the endpoint. There are some use cases where it makes sense to invoke an endpoint from an automation script instead of utilizing a publish channel. Publish channels queue up messages and then try to send to the external system (the user isn't aware of success or failure). This can be a plus, but other times it's critical that the integration occurs immediately or the transaction inside of Maximo fails (change status is rolled back, labor transaction isn't saved, etc.). That's not possible with a publish channel. Less importantly, other systems can't process a Maximo message, so you have to transform the XML/JSON message into a format the other can consume and it's sometimes easier to build it directly as you need in a script instead of transforming. 

I want to preface this with I haven't done this, but this is something we are planning to look at doing to improve some of our integrations.

HTTP endpoints have a HTTPEXIT property that allows you to set a Java class (typically). What most people aren't aware of is you are supposed to be able to set it to script:SCRIPTNAME (replacing SCRIPTNAME with your automation script name) and that will invoke your script.

I have never seen this fully documented on how to do it end to end, but there is some info such as how to declare your script that can be found here: HTTP handler (ibm.com)

First things first, your script needs to be set to "Allow invoking methods" or else it won't work. Secondly inside your script you need to declare a function that matches what they're looking for. For example, if you wanted to control the header and were using python, you should have something like this:
def headerProps():
    # Your logic here

Depending on your function will determine what gets stored in an invokeArgs implicit variable (that is an object array). For the header it looks like Maximo declares a ScriptHTTPReq class that it puts in an object array that gets stored in the invokeArgs that you can reference in your script. Once you get that ScriptHTTPReq class you can call methods such as addHeader(name,value) with the appropriate header name and value that you want to add to the HTTP request and it should modify it.

If you haven't gotten comfortable with it, I would recommend using a java decompiler as it's easier to understand what's possible and what's going on in situations like this that aren't very well documented.

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

My guess is that is your issue. As for the invokeArgs, I believe you should just be able to get the java class using something like:

scriptReq=invokeArgs[0]

And then call the function (such as adding a header) like:

scriptReq.addHeader(name,value)

If that still doesn't work let me know and I'll try and build a similar test in our demo apps.

Thank you so much @Anamitra Bhattacharyya and @Steven Shull! Both suggestions provoked a lot of ideas and lead me to a solution that is 98% there. A few follow ups:

1) I used Anamitra's suggestion to dynamically update the endpoint properties on Publish Channel exit. This worked wonderfully for OAUTH2.0.

# Grab OAUTH Access Token
map = HashMap()
body='client_id=MYIDHERE&client_secret=MYSECRETHERE&resource=https://blahblah.dynamics.com&grant_type=client_credentials'
response=service.invokeEndpoint("365OAUTH",map,body)
responseObject=JSONObject.parse(response)
tkn=responseObject.get("access_token")

I then use that token string to dynamically build my header for my HTTP endpoint.

mapPOST = HashMap()
mapPOST.put("HEADERS","Content-Type:application/json,OData-MaxVersion:4.0,OData-Version:4.0,Authorization:Bearer "+tkn)
IntegrationContext.getCurrentContext().setProperty(MetaDataProperties.ENDPOINTPROPS, mapPOST)

This works great! Only issue is if the message fails. It is great that it ends up in message reprocessing (exactly what I wanted) but it appears that reprocessing doesn't trigger my publish channel script again so reprocessing will always fail because the token is obviously missing from the header on my HTTP endpoint.

My first thought was I could just update the actual endpoint properties to include the header+token and save it to the MBO. However, I'm not sure if it can actually save the entire token? When trying to manually paste the token into the headers via the UI, the field wasn't big enough to hold all that text. Would I run into that problem if I tried to save this token value via code? It obviously works dynamically, guessing the same size restriction doesn't exist when doing it entirely in code.

My next thought is I may have to move this dynamic endpoint property code down a level from Publish Channel exit to endpoint? That is the only way I think it would work when the message fails and is stuck in message reprocessing?
​​

Correct, if you're using a publish channel the publish channel invokes the endpoint. There are some use cases where it makes sense to invoke an endpoint from an automation script instead of utilizing a publish channel. Publish channels queue up messages and then try to send to the external system (the user isn't aware of success or failure). This can be a plus, but other times it's critical that the integration occurs immediately or the transaction inside of Maximo fails (change status is rolled back, labor transaction isn't saved, etc.). That's not possible with a publish channel. Less importantly, other systems can't process a Maximo message, so you have to transform the XML/JSON message into a format the other can consume and it's sometimes easier to build it directly as you need in a script instead of transforming. 

I want to preface this with I haven't done this, but this is something we are planning to look at doing to improve some of our integrations.

HTTP endpoints have a HTTPEXIT property that allows you to set a Java class (typically). What most people aren't aware of is you are supposed to be able to set it to script:SCRIPTNAME (replacing SCRIPTNAME with your automation script name) and that will invoke your script.

I have never seen this fully documented on how to do it end to end, but there is some info such as how to declare your script that can be found here: HTTP handler (ibm.com)

First things first, your script needs to be set to "Allow invoking methods" or else it won't work. Secondly inside your script you need to declare a function that matches what they're looking for. For example, if you wanted to control the header and were using python, you should have something like this:
def headerProps():
    # Your logic here

Depending on your function will determine what gets stored in an invokeArgs implicit variable (that is an object array). For the header it looks like Maximo declares a ScriptHTTPReq class that it puts in an object array that gets stored in the invokeArgs that you can reference in your script. Once you get that ScriptHTTPReq class you can call methods such as addHeader(name,value) with the appropriate header name and value that you want to add to the HTTP request and it should modify it.

If you haven't gotten comfortable with it, I would recommend using a java decompiler as it's easier to understand what's possible and what's going on in situations like this that aren't very well documented.

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?

Correct, if you're using a publish channel the publish channel invokes the endpoint. There are some use cases where it makes sense to invoke an endpoint from an automation script instead of utilizing a publish channel. Publish channels queue up messages and then try to send to the external system (the user isn't aware of success or failure). This can be a plus, but other times it's critical that the integration occurs immediately or the transaction inside of Maximo fails (change status is rolled back, labor transaction isn't saved, etc.). That's not possible with a publish channel. Less importantly, other systems can't process a Maximo message, so you have to transform the XML/JSON message into a format the other can consume and it's sometimes easier to build it directly as you need in a script instead of transforming. 

I want to preface this with I haven't done this, but this is something we are planning to look at doing to improve some of our integrations.

HTTP endpoints have a HTTPEXIT property that allows you to set a Java class (typically). What most people aren't aware of is you are supposed to be able to set it to script:SCRIPTNAME (replacing SCRIPTNAME with your automation script name) and that will invoke your script.

I have never seen this fully documented on how to do it end to end, but there is some info such as how to declare your script that can be found here: HTTP handler (ibm.com)

First things first, your script needs to be set to "Allow invoking methods" or else it won't work. Secondly inside your script you need to declare a function that matches what they're looking for. For example, if you wanted to control the header and were using python, you should have something like this:
def headerProps():
    # Your logic here

Depending on your function will determine what gets stored in an invokeArgs implicit variable (that is an object array). For the header it looks like Maximo declares a ScriptHTTPReq class that it puts in an object array that gets stored in the invokeArgs that you can reference in your script. Once you get that ScriptHTTPReq class you can call methods such as addHeader(name,value) with the appropriate header name and value that you want to add to the HTTP request and it should modify it.

If you haven't gotten comfortable with it, I would recommend using a java decompiler as it's easier to understand what's possible and what's going on in situations like this that aren't very well documented.

1. Action Launch Point Script called Launch2 created Language Jython in Automation Script Tab, No Variables in Variables Tab, Launch Points has Launch Point Type like this 
   

1. I created a Tab in Asset Application , I added a Section, Inside there I added a "Push Button" .in the Push Button properties in Advanced I have a signature created called Launch2. Going by that in its General I have the Label as Launch2 and Event as LAUNCH2.I do not know what Default Button is so I clicked it and tried without clicking it.
2. I went and added Launch2 as possible for maxadmin group as this is a pre production system and I only have this user.Logged out.
3. An HTTP endpoint called APPUHTTP with URL of google made in the Integration Application 
4. in my Automation script that I am caling Launch2 here is the code in jython  

1. The website where I am passing the parameter is protected using its own rest api mechanisms like a REST Header which I can craft through Postman. Postman actually shows me code for several programming languages. The line you have in the sample what language is that scripting. I see maximo supports several? 
2. What would I need to do if the requirement is say one is on the Asset Tab and clicks the custom tab,not a hyperlink or button, could I possibly intercept the custom tab click in some way so that a "automation script" can be run.
3. In this link the author says associate the code snippet with your button? https://maximomize.wordpress.com/2018/03/16/open-application-and-open-its-record-using-a-button/   or this link where the author talks about adding code https://maximonews.wordpress.com/2011/05/15/redirect-from-one-app-in-maximo-to-another/  is it part of a java class or  scripting ?