Message SAP WXP287 - Enter a target version that is different to active version &1

Diagnosis
You want to copy data to active plan version &V1&for planning step &V2&. Active plan versions areprotected against being over-written when copied.

System Response
The copy procedure is interrupted.

Procedure
Change your entry for the target plan version or use automatic planningwith the planning activity "Release to the active plan version".