SAP Message XC045 - Indicator for APO relevance could not be set ( & & )

Diagnosis
An error occurred while setting the indicator for APO relevance(APOKZ). This happened because the corresponding data record in thematerial master data is currently locked.

System Response
The system could not set the indicator.

Procedure
Rectify the inconsistency by using report RAPOKZFXat a later point in time.