Venkidi,
The default TPA is indeed created automatically on install.
I think webMethods expects no duplicates for any specific combination of sender and receiver in a TPA, so order of processing should not be an issue. TPAs are not like processing rules in that regard. Since (as you said from the start) you had a TPA that corresponded to valid partner ids, only the custom TPA should take effect.
When I tested it, leaving the default TPA disabled did not prevent things from working correctly using my custom TPA. ( At least apparently ). So that would explain why the GS routing setting for the default TPA had no effect.
Nevertheless I agree with Rob that if the docs say you shouln’t disable the default TPA, it would be wise to conform.
Regards
-Mark
#Flow-and-Java-services#Integration-Server-and-ESB#webMethods