Cannot decrease qty to Close PO line neither receive the overdue qty.

Hi All, Good Day!

I`m kind of stuck in a situation where a PO line with ordered qty = 2. Receipt was done for only 1 pcs and billed. When try to reduce qty from 2 pcs to 1 the error message '' the qty ordered cannot be less that qty received'' appears.

After some time, the remained qty was delivered from supplier and it appears to be in-transit but no qty available in the expected receipts form.

I have to mention that first qty was delivered via ASN note while the second without ASN. I cannot figure where in the system item is stuck. RCV shipments shows fully received and status Open in PO line locations.