SAP Message 7A051 - Degree of processing can only be used for actual percentage of completion

Diagnosis
You have selected measurement method &V1& for field &V2&. In thismethod, the system copies the degree of processing in the confirmationas the degree of completion. You can only use the degree of processingfor the actual degree of completion. However the field &V2& is notvalid for actual degree of completion.

System Response
INCLUDE 'NA_ALLG_NOVERARBEITUNG' OBJECT DOKU ID TX

Procedure
Check your entries, and correct them, if necessary.