SAP Message R3412 - No active transfer structure exists in source system &1 for DataSource &2

Diagnosis No transfer structure is active in source system &V1& for DataSourceV2. an active transfer structure is required when calling theextractor remotely to transfer the selected data. System Response The remote call-up of the extractor has been terminated. Procedure In the BW system, try to activate the transfer structure for DataSourceV2 from source system v1.