Purchase Order Receipts on MWO Service App show ALL parts requiring receipt to all engineers and I cannot work out how to prevent it.

I thought the PO Receipts should only go to the MWO when the Engineer has the Work Order that the parts were ordered on but it appears all Purchase Orders linked to a Destination Warehouse appear in the Purchase Order Receipts Box.

Example, I currently have 250 Purchase Order Receipts showing that I can mark as received but none of them I should be able to receive as they are not mine to receipt.

How to we prevent this?

Thanks,