SAP Message WXP080 - Planning scenario does not contain planning characteristic &1

Diagnosis
You have entered planning characteristic &V1& as a planning level witha special meaning (for example, "material" or "classification systemcharacteristic"). Your planning scenario does not, however, containthis planning characteristic.
One possible reason for this is that planning levels were changed afterthe special planning characteristics were created.

System Response
Due to this inconsistency, the system cannot activate your planningscenario.

Procedure
On the screen "Special Planning Levels", change or delete theassignment of planning characteristics and make the planningcharacteristics correspond to the current structure of the planningscenario.