LI21 as background processing

Hi

We are trying to post inventory diff in IM-MM through LI21. When I exceute LI21 in foreground mode inv diff posting is happening successfully. When I execute the same in background mode (Program Name - RLLI2110), inventory posting is not happening.

I checked SAP note 1525036 , using program RLLI2100 instead of RLLI2110 but this also not working.

If anybody has faced similar issue and what is root cause of issue.

Thanks in advance