SAP Message WXP663 - Planned mtrl grp &1 is not the same as mtrl grp &2 for material &3

Diagnosis
You tried to create an allocation table in manual planning. In doingso, you create the material group as a planning level. When the itemsfor the allocation table were created, material &V3& was added. Thematerial master for material &V3& includes different material group.

System Response
The allocation table was not created.

Procedure
For planning reasons, you can assign a material group that is differentfrom the master data to a material in the planning hierarchy. When anallocation table is created in manual planning, active processes suchas purchase orders and deliveries are included, resulting inconsistancy with the master data. For this reason, check the materialmaster data or do not run planning for material &V3&.