After AD/TXK Upgrade opmn services not starting

Error

[2022-12-04T09:03:59+05:30] [opmn] [ERROR:1] [] [internal] /u01/apps/fs2/FMW_Home/webtier/opmn/bin/opmn: unexpected exit: status 4200

opmnctl start: opmn failed to start.

Resolution

Prerequisite Steps to Configure Oracle Fusion Middleware 11.1.1.9 Components for Oracle E-Business Suite Release 12.2 Before Applying July 2019 or Later FMW OSS Security Patch (Doc ID 2555355.1)