How To Fix B2209 - Last segment definitions do not match

SAP Error Message - Details

• Message type: E = Error

• Message class: B2 - ALE Basis tools messages

• Message number: 209

• Message text: Last segment definitions do not match

What causes this issue?

The final existing segment definitions do not match.
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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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B2209 - Last segment definitions do not match ?

  The SAP error message B2209, which states "Last segment definitions do not match," typically occurs in the context of IDoc processing. This error indicates that there is a mismatch in the segment definitions of the IDoc being processed, particularly in the last segment of the IDoc structure.
  Cause:
  
  Segment Definition Mismatch: The IDoc structure defined in the system does not match the structure of the IDoc being sent or received. This can happen if there have been changes to the IDoc type or if the IDoc is being processed with an outdated or incorrect version of the segment definitions.
  Incorrect Mapping: If the IDoc is being generated or processed by a middleware or an external system, there may be an issue with how the segments are mapped or defined in that system.
  Configuration Issues: There may be configuration issues in the partner profiles or the IDoc processing settings that lead to this mismatch.
  
  Solution:
  
  Check IDoc Definitions: Verify that the IDoc type and segment definitions in the SAP system match the IDoc being processed. You can do this by using transaction WE30 (IDoc Types) and WE31 (Segment Types) to review the definitions.
  Update Segment Definitions: If there have been changes to the IDoc structure, ensure that all relevant systems are updated with the latest segment definitions. This may involve updating the middleware or external systems that generate or process the IDocs.
  Review Partner Profiles: Check the partner profiles (transaction WE20) to ensure that the settings for the IDoc processing are correct and that they correspond to the expected IDoc structure.
  Test IDoc Generation: If you are generating IDocs from an external system, test the IDoc generation process to ensure that it adheres to the correct structure and definitions.
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error or provide guidance on IDoc processing issues.
  
  Related Information:
  
  IDoc Types and Segments: Understanding the structure of IDocs, including the types and segments, is crucial for troubleshooting this error. Familiarize yourself with the IDoc documentation provided by SAP.
  Transaction Codes: Use transaction codes like WE02 (Display IDoc), WE19 (Test IDoc), and WE30/WE31 for managing IDoc types and segments.
  Error Logs: Check the error logs in transaction WE02 or WE05 to get more details about the IDoc that triggered the error. This can provide insights into which specific segment is causing the issue.
  
  By following these steps, you should be able to identify and resolve the cause of the B2209 error in SAP.