SAP Message WXP009 - Plan version & was not assigned to a planning hierarchy version

Diagnosis
You have entered plan version &V1& when defining planning layout &V1&and/or in the characteristic screen.
No planning hierarchy version was assigned to this plan version yet.
The planning hierarchy version is compulsory for successfully executingmanual planning.
The plan version cannot therefore be used in manual planning.

Procedure
Assign a planning hierarchy version to plan version &V1& or change yourentries.