Diagnosis
You want to assign an only representative to the &V1& business partnerV2. this business partner already has an only representative assignedfor the corresponding validity period and for the specified regulation.

Procedure
Check the only representative assignment for the &V1& business partnerV2. check whether a material-specific or a material-independent onlyrepresentative assignment is maintained for the regulation. The validityperiods of such an assignment cannot overlap. If necessary, checkwhether the components of the material also appear in other materialsand whether an only representative assignment for the regulation existsalready for these materials. The validity periods also cannot overlap inthis instance.