Dear Karthik,
There was an logic in the idoc processing for the text segment of the idoc.
If some text/number avaialble in this segment (text) then system will check for the first 4 characters as chart of accounts and next 3 characters as transaction and look for the GL account in the T030 table of the OBYC.
In my case there was a space (more than 4+3=7) and system was taking 4 spaces as COA and 3 spaces as transaction key and looking for the GL account in T030 table. And unfortunately there was an blank entry in T030 table and due to this system unable to find the GL account for this combination (Spaces).
To resolve this issue go to SE16 and give table name EDID4 and give the segment name (segment of text field) and idoc number and search. You will get all the text related segments and try to find the segment having Space before the text/numeric filled in that segment.
There after edit the IDOC and remove the space from the text field of the segment and try to re-process the IDOC from BD87 transaction code.
Regards,
Syed Abdul Mazid
