SAP Message RSDME376 - Cannot create Target Group.No model key compatible to 0BPARTNER/0CUSTOMER

Diagnosis Model does not have any key that is compatible to 0BPARTNER or0CUSTOMER. Procedure If model has more than one key, ensure one of the keys is 0BPARTNER or0CUSTOMER. If the model has only one key, ensure that the data typematches 0BPARTNER or 0CUSTOMER.