Diagnosis
You want to create a euro FM area for an FM area to which a euro FMarea has already been assigned. This is not possible.
Ony one euro FM area may be assigned to an FM area.

Procedure
Use the euro FM area which is already assigned to the entered FM area.
You can check the assignments of original FM areas and euro FM areas inthe Budget Planning in Euro IMG in section Display ControlRecords Euro FM Area (View: V_FMEUROFIKR).
If several euro FM areas are assigned to an original FM area then thereis a system data inconsistency. Contact the SAP Hotline.