SAP Message BEA_XIF002 - Transaction &1/&2/&3/&4 exists more than once

Diagnosis The transaction transferred to the inbound interface with key ,,&V1& / &V2& / &V3& / &V4& is present more than once in the transferred data. System Response The system cancels processing. No entries were created in the billingdue list. Procedure Ensure that there are no double entries in the transferred data. In CRMBilling (billing application CRMB), uniqueness is determined via thefields "Logical System", "Object Type", "Document Number" and "ItemNumber". In other billing applications the key can be defineddifferently.