Message SAP WXP664 - Purch. grp &1 is not the same as purc. grp &2 from interface &3

Diagnosis
You tried to create an allocation table in manual planning. In doingso, you entered purchasing group &V2& in interface &V3&. You can,therefore, use purchasing group &V1& as a planning characteristic.

System Response
The allocation table could not be created.

Procedure
Remove the deviation.