Message SAP BORGR703 - Inb. delivery contains SumJCs for which a GR has already been posted

Diagnosis The inbound delivery contains summarized JIT calls for which one goodsreceipt has already been posted. You now want to post another goodsreceipt for one of these summarized JIT calls. System Response The goods receipt is posted. Procedure Check if multiple goods receipt postings for summarized JIT calls makesense in your process.