SAP Message CC170 - Revision level cannot be created for this document

Diagnosis
You want to assign a revision level to the change status of thedocument.

System Response
The system checks whether the selcted change master contains theindicator A management record is required for each object forthe Object type document.

Procedure
This indicator is not set in the change master record.
Before you can assign a revision level to this change status of thedocument using this change master, you have to enter this indicator inthe change master.