Re: 19c upgrade with EBS 12.1.3 environment

Posted by ErmanArslansOracleBlog on Feb 16, 2022; 5:56pm
URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/19c-upgrade-with-EBS-12-1-3-environment-tp10619p10667.html

Yes.. tnsnames is regenerated and that's why your temp workaround is overwritten.
In my last update, I sent you 3 notes.
This seems related with the services..
In 19c database service_name parameter should be set to container name..

Please the that blog post and the following MOS Note -> 19c Database with Oracle E-Business Suite R12 Known Issues & Solutions (Doc ID 2662860.1) - Section: ORA-1017 when opening Forms and ORA-1017 Invalid username/password; logon denied FRM-41352 failed to create a new session