Running BAPI in background job with submit program showing entry is locked by user

Hi Experts,

Code for MIGO Check function is written in method line_modify using BAPI_RESERVATION_CHANGE creates locked entries in SM12

SM12 entries created by above code

Post function code is written in method POST_Document shows reservation is locked user USXXXX.

Same BAPI_RESERVATION_CHANGE is also called in Submit Program to update reservation after change.

Just to avoid commit BAPI_Commit in BADI, I have created this Submit program.

But when I run the same BAPI in background showing reservation entry is locked but in foreground it runs correctly.

Please help, Thanks in advance!

Regards,

Saquib