How To Fix IST_EBS304 - Incorrect IDoc: Segment &2 not intended for type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: IST_EBS - Interface Between IS-T and External Billing System

• Message number: 304

• Message text: Incorrect IDoc: Segment &2 not intended for type &1

What causes this issue?

The current IDoc type contains a segment which cannot be processed.
An error must have occurred while writing the 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?

Check the process for writing IDocs.

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 IST_EBS304 - Incorrect IDoc: Segment &2 not intended for type &1 ?

  The SAP error message IST_EBS304, which states "Incorrect IDoc: Segment &2 not intended for type &1," typically occurs when there is a mismatch between the IDoc structure and the expected data format for the specific IDoc type being processed. This error indicates that a segment (in this case, segment &2) is not valid for the specified IDoc type (&1).
  Causes:
  
  
  IDoc Structure Mismatch: The IDoc being processed contains segments that are not defined for the specified IDoc type. This can happen if the IDoc was incorrectly constructed or if there are changes in the IDoc definition that have not been reflected in the data being sent.
  
  
  Versioning Issues: If there are different versions of the IDoc type being used, the segments may differ between versions, leading to this error.
  
  
  Configuration Issues: Incorrect configuration in the IDoc processing settings or in the partner profiles can lead to the system expecting different segments than those provided.
  
  
  Data Mapping Errors: If the data being sent to the IDoc is being mapped incorrectly, it may lead to the inclusion of segments that are not valid for the specified IDoc type.
  
  
  Solutions:
  
  
  Check IDoc Definition: Verify the IDoc type definition in transaction WE30. Ensure that the segments being sent are indeed valid for the specified IDoc type.
  
  
  Review IDoc Data: Inspect the IDoc data being sent. You can use transaction WE02 or WE05 to view the IDoc and check if the segments match the expected structure.
  
  
  Update IDoc Mapping: If you are using middleware or custom mapping logic, ensure that the mapping is correctly configured to match the IDoc structure.
  
  
  Consult Documentation: Review the documentation for the specific IDoc type to understand the expected segments and their structure.
  
  
  Check Partner Profiles: In transaction WE20, check the partner profiles to ensure that the settings are correct and that they match the IDoc type being processed.
  
  
  Testing: If changes are made, test the IDoc processing with a small set of data to ensure that the issue is resolved.
  
  
  Related Information:
  
  IDoc Types: Each IDoc type has a specific structure defined in the SAP system. Understanding the structure of the IDoc type you are working with is crucial.
  Transaction Codes:
  
  WE30: IDoc Type Development
  WE02/WE05: IDoc Monitoring
  WE20: Partner Profiles
  
  
  SAP Notes: Check SAP Notes for any known issues or updates related to the specific IDoc type you are working with.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.