My First Issue on R12.2- Online Patching-ORA-20008: No Concurrent Manager is defined that can run concurrent program

I was upgrading R12.2.0 to R12.2.2, as part of the upgrade i was applying 12.2.2 AD and TXK patches.

When i was running adop phase=prepare in patching cycle. I faced below error:

ERROR at line 1:

ORA-20008: No Concurrent Manager is defined that can run concurrent program

ADZDPATCH

ORA-6512: at "APPS.AD_ZD_ADOP", line 240

Solution:
Set the Run filesystem / environment and run command:
FNDLOAD apps/apps 0 Y UPLOAD $FND_TOP/patch/115/import/afcpprog.lct $AD_TOP/patch/115/import/US/adzdpatch.ldt - CUSTOM_MODE=FORCE

Ref: Metalink Note:
ORA-20008 When Running "adop phase=prepare" (Doc ID 1587419.1)