SAP Message CC094 - Revision level cannot be created for material &

Diagnosis
You want to define the change status of material &V1& further by usinga revision level.

System Response
The system checks whether the following indicators are set for theobject type material in the chosen change master record:
RESET N1
Object management record required for each object
Object management record only generated when you create object
RESET N1

Procedure
Process the indicators according to the situation:
For 1
If the Object management record required for each object is notset, set this indicator.
For 2
if material &V1& already exists in the system, and the Generateobj. mgmt record only when you create object is set, the system canno longer create the object management record automatically.
In this case, you must first create the object management record formaterial &V1& in the change master record, then you can assign arevision level to the material.