SAP Message /EACC/MSG_DOC_JOURNL025 - ACC doc. &4 exists for source doc. &1/&2 in acc. system &3

Diagnosis For this source document, an accounting document already exists inaccounting system '&V3&' with sender ID '&V1&' and sender key '&V2&'.You have been trying to post an accounting document here. System Response The system terminates here and does not post a document. Procedure Check the source document number assignment in the calling system. Thismust be unique.