Advanced Returns - Credit Memo Request SC transaction MSR_CRD

During the advanced returns process, were trying to determine how to handle a short picked PGR'd delivery.

When a customer creates a return order for 1000, but actually only returns 500, the CMR is going to be created for the 1000 Qty rather than the 500 PGR'd. Within the transaction MSR_CRD there is an option to split the CMR, but this still leaves an outstanding Qty from the Return Order. Also, since the Delivery has been PGR'd, we are unable to go into the Return Order and update the Qty to the correct amount.

Any pointers out there guru's?

- Chuck