How To Fix IDOC_ADAPTER208 - IDoc adapter: IDoc &1 exists twice in IDoc XML

IDOC_ADAPTER208 - Overview

• Message type: E = Error

• Message class: IDOC_ADAPTER - Messages for the IDoc Adapter

• Message number: 208

• Message text: IDoc adapter: IDoc &1 exists twice in IDoc XML

What causes this issue?

IDoc adapter outbox: IDoc & exists twice in the XML IDoc.

System Response

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

How to fix this error?

Two IDocs with the same IDoc number exist in the XML IDoc. Check the
XML IDoc and edit, if necessary.

Procedure for System Administrators

Contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

IDOC_ADAPTER208 - Details

• The SAP error message IDOC_ADAPTER208 indicates that there is a problem with the IDoc XML structure, specifically that an IDoc with the same identifier exists more than once in the XML. This can lead to confusion in processing the IDoc, as each IDoc should have a unique identifier.
  
  Cause:
  The error typically arises from one of the following scenarios:
  
  
  Duplicate IDoc Entries: The IDoc XML being processed contains multiple entries for the same IDoc number or identifier. This can happen due to incorrect data generation or issues in the system that creates the IDocs.
  
  
  Incorrect Mapping: If there is a mapping issue in the middleware (like SAP PI/PO), it might lead to the same IDoc being sent multiple times or being incorrectly formatted.
  
  
  Data Duplication: The source system might be sending duplicate data, leading to the generation of IDocs with the same identifier.
  
  
  
  Solution:
  To resolve the IDOC_ADAPTER208 error, you can take the following steps:
  
  
  Check IDoc XML: