Hi Sanjay
Like you said that the jobs are running .. did you check if they are running and completing successfully sometimes long run of the jobs also cause these issues ..
So , Please check if the job ran successfully?
If this is a case for one of the GR documents or all ?
Also check the IDOC in ECC and SRM was sent out successfully
If no issues found on any of the points above . Then refer to the note and see if this helps :
Note 644963 - Regenerating BBP_DOCUMENT_TAB entries
338985 - BBPCF & IV: incorrect IDocs in backend system
535765 - Too many entries in BBP_DOCUMENT_TAB
Regards
Vinita