SAP Message WXP082 - Classification system character. &3 for planning character. &2 is invalid

Diagnosis
You have assigned the meaning "Classification System Characteristic"V1 to planning characteristic v2. you have not, however, enteredthe characteristic from the classification system that you want theplanning characteristic to represent. The characteristic that youentered, &V3&, is however invalid (for more information, see the nextmessage).

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

Procedure
In the classification system, check characteristic &V3& or enter adifferent classification system characteristic that is to be assignedto the planning level belonging to the category "Classification SystemCharacteristic".
When you have done this, check the planning scenario once again.