SAP Message 7A052 - & can only be used for actual percentage of completion

Diagnosis
You have selected measurement method &V1&. 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.

System Response
INCLUDE 'NA_ALLG_NOVERARBEITUNG' OBJECT DOKU ID TX

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