SAP Message VO247 - Shipping processing not possible for returns to vendor in plant &

Diagnosis
Within the purchase order document with the document type &V2&, thereturns item &V3& for plant &V1& was entered.
For document type &V2&, no delivery type has yet been defined in plantV1 so that no shipping processing can be executed for this purchaseorder item.
Therefore, the system cannot create any shipping data for the purchaseorder, which forms the basis for updating the workload data.

System Response
The returns item &V3& is not included in the update of the data for therough workload forecast.