No purchase order for material &1 exists

What causes this issue?

The system cannot find any open purchase orders for material &V1& and
plant &V2&.

System Response

INCLUDE ISR_STOP

How to fix this error?

Check the data transferred by the plant.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.