Receiving unprocessed material from OSP Vendor

There exists a scenario in which some input material is sent to Outside processing facility using blanket PO.

Out of the total lot, some of the  input materials have defects in it or some other problem because of which it is decided to receive it back without any processing and to be scrapped thereafter.

As per our setup the OSP requisition is generated when job moves to OSP operation.  We are using PO move charge type and there is shop floor status defined for the same.

The problem is if we receive through the PO then the job qty gets moved to next operation and OSP is charged as expected.