Purchase order & does not contain an item for a goods issue

What causes this issue?

Purchase order &V1& is no
<GL:stock_transport_order>stock transport order</>. Therefore, it is not
possible to post a goods issue with reference to this purchase order.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Enter a different purchase order or choose a different goods movement.

Error message extract from SAP system. Copyright SAP SE.