Latest possible delivery date was &

What causes this issue?

According to the purchase order, the latest possible goods receipt date
for this item was &V1&.

System Response

Depending on how the system is set, this message is either a warning
or an error message.

How to fix this error?

Contact the purchasing department to clarify whether to accept the
delivery.
If the message is an error message, you can only post the goods
receipt to the goods receipt blocked stock.

Error message extract from SAP system. Copyright SAP SE.