How To Fix V4343 - External document number &1 does not match reference document number &2

SAP Error Message - Details

• Message type: E = Error

• Message class: V4 - Nachrichten Verkauf (Variable Meldungen und EDI-Meldungen)

• Message number: 343

• Message text: External document number &1 does not match reference document number &2

What causes this issue?

The external document number sent in the IDoc was not correctly copied
into the newly created invoice.

System Response

The IDoc ends with status 51.

How to fix this error?

Check:
- Whether the external document number was sent correctly in the IDoc.
The document number is transferred in segment E1EDK01, field DOCNO.
- Whether a correct copy routine is set up. In the standard delivery
copying requirement 024 or 025 is provided at item level for copying
from delivery to billing. This transfers the document number sent from
an external source.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.