When you are sending xml data to clients https url,just you need to have their connectivity credentials username/password and content-type=“text/xml”.you dont need to configure IS with certficates.unless your client wants SSL handshaking when connecting to their DMZ or secured server.
If so then you need to configure an https port and install the certificates in the IS/Config folder and get CA signed certificate,your client certificate and place this in the Trusted folder IS/certs…
Restart the IS and finally test the connectivity.
HTH,
#webMethods#Integration-Server-and-ESB#Flow-and-Java-services