Diagnosis
The settlement variant &v1& on &v2& of the master settlement unit isnot identical to the settlement variant &v3& on &v4& of theparticipating settlement units.

Procedure
The settlement variants of the master settlement unit must be identicalto the settlement variants of the participating settlement units.
All participating settlement units assigned to the same date must havethe same settlement variant. This also applies to the settlementvariant of the master settlement unit. It is always only possible toassign participating settlement units to a period start date.
Either enter a different settlement variant or check the settlementvariants of the participating settlement units.