Update Business Area for Electronic Bank Statement

Hello gurus,

i am facing a problem. In a company code, it is active the field for the business area in the line item of the document creation.

this makes the posting of the electronic bank statement impossible, because when posting, the field COBL-GSBER is not filled in, and is mandatory...then error occours.

any idea on how to solve this?

i have tried making a substitution rule in tcode OBBH, but it keeps on not being updated, even if i do the postings via batch input folder after tcode FF_5.

Please advise.

kind regards,

Carlos