Credit Memo in Project Billing

Hello Gurus,

Quite often, whenever we integrate Order Management and Oracle Projects, we usually get stumbled upon solution for Returns and subsequent Credit Memo.

Unfortunately, PA doesn't have a feature of creating credit memo directly without referring to an invoice.

Typical solution for OM and PA Integration.

Create Expenditure items or Billing events in PA from shipment lines of OM (of course using custom program)

If an invoice is generated based on Events, while we create a credit of this invoice, system reverses all lines of this invoice.

And, in case, if an invoice is generated from expenditure items, system won't allow to credit partial quantity billed.