Return to supplier from iProcurement Requester not creating Debit Memo for ERS suppliers

when we return expense destined item receipted in validation org from iProcurement , RCV transactions created for the RETURN TO VENBDOR transaction is not creating debit memo automatically for ERS suppliers, invoice status in PENDING. 

when return is performed from inventory ORG, we would usually choose create debit memo flag for an DM to be auto created. 

We don't have this option when return to supplier is performed from iProcurement requester responsibility for validation ORG's. 

Please let us know what is the intended functionality.