R12.2.x - adop phase=prepare ORA-20008: No Concurrent Manager is defined that can run concurrent program ADZDPATCH

I have applied the R12.AD.C.DELTA.3 and R12.TXK.C.DELTA.3 to the Run File System. The next process was to start the online patching cycle for Oracle E-Business Suite 12.2.3 Release Update Pack.

$adop phase=prepare

The step halted with the below error:
SQL> select AD_ZD_ADOP.WAIT_FOR_CP_TO_RUN(527131) from dual
       *
ERROR at line 1:
ORA-20008: No Concurrent Manager is defined that can run concurrent program
ADZDPATCH
ORA-06512: at "APPS.AD_ZD_ADOP", line 240

Solution:

Issue is caused because adzdpatch.ldt not completely loaded into database. Run the below FNDLOAD statement.

$ FNDLOAD apps/apps 0 Y UPLOAD $FND_TOP/patch/115/import/afcpprog.lct $AD_TOP/patch/115/import/US/adzdpatch.ldt - CUSTOM_MODE=FORCE
Log filename : L527132.log


Report filename : O527132.out
$

Now restart $ adop phase=prepare

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