SAP Message WXP282 - Variant &2 that has been assigned does not exist

Diagnosis
You want to execute automatic planning &V1&. Variant &V2& was assignedto this planning. This variant does not exist in the system.

System Response
Automatic planning cannot be executed.

Procedure
Create the required variant for planning scenario/planning step &V4&/V5 in customizing for automatic planningV1.