SAP Message /ISIDEX/EDEREG_INV020 - No unique allocation of ID &1 / identification &2 to a service ID

Diagnosis The allocation of the internal ID (defined by the service ID type) tothe external ID (defined by a combination of ID type and ID) is notunique. Procedure Check the settings in IMG activity Define ID for Bill and PaymentAdvice Note Parts. INCLUDE ISU_PENCIL OBJECT DOKU ID TX