I could not find best practices on how to address below problem.
We have a Service PO with
1. GR-Bsd IV flag ticked
2. S-Based IV flag ticked and
3. Inv Receipt Flag ticked on PO line
Our scenario:
We created SES and released SES. Eg 100 Quantity with Price 1 USD = 100 USD
We posted invoice with reference to SES for 100 USD.
Now we received a credit memo for 20 USD(vendor realised he sent a wrong invoice).
We posted Credit Memo with reference to SES for 20 USD.
We now wanted to Adjust SES so that it reflects actual services delivered by Vendor, meaning we want to either update original SES with a quantity of 80 instead of 100/Post a negative SES for quantity 20 so we end with correct SES created. which is not possible based on my analysis due to SAP limitation.
How do we approach below situation in best possible way?
I read below solution and request for an alternative approach.
Reverse original invoice/post full credit memo and adjust SES and post the correct invoice so no need to post partial credit memo.
My opinion: we are archiving(for audit) a partial credit memo from Vendor and performing above task does not make sense as we are posting an adjusted partial invoice(an invoice never sent from Vendor) instead of Partial credit note.
Thank you in Advance, constructive suggestions are highly appreciated