3345586 - Unable to retrieve item price. Enter '' price element manually.

System generates the error CRM_SRV_LOG_EXT_OLTP003 when creating a purchase document from a service order. For instance from an item category SRVV (Advance Shipment of Srv. Parts )

Manual condition  PMP0 is correctly updated however system shows the error with the following help:

"To be able to create a purchase requisition, the system requires a price for the item.
Enter a manual price in the pricing assignment block.
Use the pricing condition as per the configuration to assign condition type to item categories.
In the standard configuration, you can use pricing condition PMP0 for service orders and PCO4
(charged cost) for service quotations"

SAP S/4HANA

SRVV, Advance shipment , KBA , CRM-S4-SRV-SVO , S4CRM: Service Order , Problem