How To Fix WP621 - No purchase order with number &1 for material &2 exists

SAP Error Message - Details

• Message type: E = Error

• Message class: WP - Messages from POS interface

• Message number: 621

• Message text: No purchase order with number &1 for material &2 exists

What causes this issue?

The system cannot find any open purchase orders with the number &V1&
for material &V2& and plant &V3&.

System Response

INCLUDE ISR_STOP

How to fix this error?

Check the purchase order number transferred by the plant.
In similar cases, you can continue the search without using the
purchase order number by changing the Customizing settings for
processing POS goods movements.

Error message extract from SAP system. Copyright SAP SE.