A fatal error related to codelines or codelevels has occurred

AutoPatch error:
--------
This patch is not compatible with your current codelines.

This patch is compatible with: entity 'pjt' - codeline 'R12.PJT.A'.
Your current on-site codeline for the entity 'pjt' is: 'R12.PJT.B'.

You should not apply this patch.
Apply an equivalent patch that is compatible with your
current codelines instead.
--------
AutoPatch error:
--------
A fatal error related to codelines or codelevels has occurred.

Solution:-

SQL script to check product patchlevel or codelevel

SELECT app_short_name, MAX(patch_level)
FROM apps.ad_patch_driver_minipks
GROUP BY app_short_name ;

APP_SHORT_NAME
--------------------------------------------------
MAX(PATCH_LEVEL)
------------------------------
PSP
R12.PSP.B.3

AS
R12.AS.B.3

FTE
R12.FTE.B


APP_SHORT_NAME
--------------------------------------------------
MAX(PATCH_LEVEL)
------------------------------
AK
R12.AK.B.3

CHV
R12.CHV.B.3

IEC
R12.IEC.B.3