SAP Message WXP241 - Plan version &1 is not defined for planning step &2

Diagnosis
You want to define active plan version &V1& for planning step &V2&.
However, this plan version has already been assigned to &V3& andcannot, therefore, be used in planning step &V2&.
INCLUDE ISR_VERARBEITUNG OBJECT DOKU ID TX

Procedure
Enter an active plan version that is assigned to planning step &V2&.