SAP Message WXP381 - Plan version &1 is active plan version

Diagnosis
You wish to delete plan version &V1&. This is not possible in thecurrent planning step as plan version &V1& is an active plan version.

System Response
The plan version cannot be deleted.

Procedure
In order to be able to delete the plan version, it must not be set asthe "active plan version". You can change this in the network in thebasic data view of the current planning step.