SAP Message /EACC/DMB002 - DataSource &1 already created with InfoSource &2

Diagnosis
You are trying to create DataSource &V1& with InfoSource &V2&. However,this combination has already been created.

Procedure
Before overwriting this combination, however, you have to deleteInfoSource &V2& in the BW system. Alternatively, you can enter acompletely new combination.