No appropriate purchase item qty. schedule found for loading date '&'

What causes this issue?

The assumed goods receipt date '&V1&', used to determine the quantity
schedule line from the assigned purchase order item, is the loading
date of the shipment.
This date ist outside the range of the quantity schedule for the
assigned purchase order item.

System Response

The system does not accept the assignment of this purchase order item.

How to fix this error?

Please correct the exchange assignment by using another purchase order
item or change the loading date of the shipment.

Error message extract from SAP system. Copyright SAP SE.