How to fill empty business area in posted documents?

Question

Hi SAP Team,
My Client need to fill the field "business area" for documents already posted. However, today all posted documents, have a rule + validation or substitution for this field.- fill business area to be filled in. For year 2013, my client want to re-assign business area at balance sheet accounts but the problem is how to that at customers, vendors account that are reconciliation accounts. Do you have any sugestion?
For balance accounts, for eg:, if my total in a gl bank account is in debit (no business area at this gl account level), my client idea is to credit that bank account without business area and debit it again but filling the business area. For Customers/Vendors, is not that easy because that gl account does not allow directed posting.
Do you have suggestion to handle this?
Thanks a lot,
Kind regards
Antónia Farias

Answer 1

For vendor / customer postings you have to create reconiliation account wise dummy sub ledgers.
E.g. 1.You have 3 recon. a/c's for customers then you cretae 3 dummy customer codes.
       2. Post a consolidated entry using this dummy accounts(one line item with B.A and the second
           line ietm without B.A)
       3. So at any point of time these subledgers should have zero balance.
       4.  Please block these sub-ledgers once your postings have been finished.
Rgds
MBN.