Thanks again Kurt (and I do appreciate the amount of time you're spending on this).
I've amended that ACS rule and I'm currently rerunning the Deployment jobs, and will retry the Workflows...
The COD was ordered on June 5th so I would hope it was built with the latest maintenance. About z/OSMF shows:

Regards
Grant
Original Message:
Sent: 6/27/2024 2:31:00 PM
From: Kurt Quackenbush
Subject: RE: z/OSMF z/OS 3.1 installation workflow
I'm scratching my head here. You said it "took a little fiddling" to get the Data Set and File search utility to work. What did you fiddle with? Wondering if that fiddling may have also helped the original problem with Workflows not finding the data set, so try creating the workflow instance from the Deployment again.
I vaguely remember some issues, quite some time ago, with Workflows stumbling over data set aliases. I suspect the COD has that and related fixes already installed, but perhaps not. What is the service level of your z/OSMF server? Click the "About z/OSMF" link in the lower right corner of the z/OSMF desktop and post a screen shot.
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Kurt Quackenbush
IBM, z/OS SMP/E and z/OSMF Software Management
kurtq@us.ibm.com
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Original Message:
Sent: Thu June 27, 2024 01:49 PM
From: Grant Carson
Subject: z/OSMF z/OS 3.1 installation workflow
Hi Kurt,
Using the Dataset and File Search utility (took a little fiddling at the host end but working now, thanks) it finds the Workflow dataset and its constituent members:

But attempting to then open 'WELCOME':

The new Master Catalog is Connected to the Driver's Master:

Creating the Workflow as you suggested above it moves to the next screen on clicking 'Next':

I think I noted yesterday that all of the NEWCAT.CB.** entries are either ALIASes or PATHs:


Regards
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Grant Carson
Original Message:
Sent: Wed June 26, 2024 01:50 PM
From: Kurt Quackenbush
Subject: z/OSMF z/OS 3.1 installation workflow
Grant, in the bottom right corner of the z/OSMF desktop click the magnifying glass icon, for the Data Set and File search utility. Then enter the data set name NEWMCAT.CB.WORKFLOW. Is the data set found? If not, is your new target system master catalog connected to the driving system's master catalog? Can you perform an IDCAMS LISTCAT command on the catalog alias NEWMCAT?
LISTCAT ENTRY(NEWMCAT) ALL
If the data set is found, then open the Workflows application and click Actions, Create Workflow. Then enter the data set name NEWMCAT.CB.WORKFLOW(WELCOME) in the "Workflow definition file" field. Click Next. Did Workflows tell you the data set is not found, or did it proceed to the next page of the wizard? In either case knowing the answer to this question will help debug, but do please open a case with IBM support to investigate this in more depth. Also, if Workflows proceeded to the next page of the wizard, just click Cancel, as you cannot properly create the subject workflow instance with this method.
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Kurt Quackenbush
IBM, z/OS SMP/E and z/OSMF Software Management
kurtq@us.ibm.com
Original Message:
Sent: Wed June 26, 2024 10:39 AM
From: Grant Carson
Subject: z/OSMF z/OS 3.1 installation workflow
Hi, new to this forum (and z/OSMF), so hopefully this isn't an inane question.
I've run the installation steps for 3.1 using a 2.4 COD system as we need to upgrade from our current 2.1 system, so there was no suitable driver system available. I used the new Master Catalog option.
I've completed the configuration and the deployment jobs, and now I'm trying to run the Workflows, but the first one comes back (even after saying 100% complete) with:
The request could not be completed because an error occurred using the z/OSMF workflow services on system "localhost". Error: "IZUWF0374E: The workflow definition file "NEWMCAT.CB.CPAC.WORKFLOW(WELCOME)" cannot be found or cannot be accessed on system "CPAC".".
I've run the job that renames all of the datasets to remove the 'NEWMCAT' prefix, e.g.

But I still have a load of Aliases and Paths left for NEWMCAT.CB.CPAC.** datasets, including NEWMCAT.CB.CPAC.WORKFLOW which is where member 'WELCOME' resides (OK, is is only an Alias for this).
Suggestions please?
Thanks
Grant
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Grant Carson
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