Unable to return an order after requisition being changed

Hi Guys,

We've got an issue at the moment where a user cannot return a receipt after the associated req was changed (its value was decreased). The original req, PO and receipt all went though successfully at price A. After this however the requisitioner made a change request (which was approved) to reduce the value of the req to price B. This change was not approved at PO level however and was actually rejected.

What would be the best way forward in this scenario?

Summary of events:

1. Requisition created and approved @ price A.

2. Buyer creates PO and submits for approval.