How To Fix M2798 - Segment definition of segment type &1 does not contain field &2

SAP Error Message - Details

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 798

• Message text: Segment definition of segment type &1 does not contain field &2

What causes this issue?

The segment definition of segment type &V1& does not contain the field
&V2& which is in the communication structure &V3&. The field names in
the segment definition and the communication structure must be
identical as the segment transfers the data to the communication
structure using MOVE CORRESPONDING.

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 segment definition of segment type &V1& and the communication
structure &V3&.
You can either:
Create a segment type with a reference, where you use communication
structure &V3& as the reference. This ensures that the field names of
the communication structure and the segment definition are identical,
and the export length of the fields in the segment definition required
for the correct conversion of the various data types is determined.
or
Correct the communication structure &V3& or the segment definition of
segment type &V1& which is used in the IDoc enhancement &V4&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M2798 - Segment definition of segment type &1 does not contain field &2 ?

  The SAP error message M2798 indicates that there is an issue with the segment definition in the context of IDoc processing. Specifically, it means that the segment type defined in the IDoc does not contain the specified field. This can occur in various scenarios, such as when working with EDI (Electronic Data Interchange) or other IDoc-related processes.
  Cause:
  
  Incorrect Segment Definition: The segment type defined in the IDoc does not include the field that is being referenced. This could be due to a misconfiguration or an outdated segment definition.
  Custom Development: If there are custom segments or modifications in the IDoc structure, it is possible that the custom segment does not match the expected structure.
  Version Mismatch: If there are different versions of the IDoc structure being used, it may lead to discrepancies in the expected fields.
  Data Mapping Issues: If the mapping between the source data and the IDoc structure is incorrect, it may lead to this error.
  
  Solution:
  
  Check Segment Definition: Verify the segment definition in transaction WE30 (IDoc Types) or WE31 (Segment Types) to ensure that the segment type indeed contains the field that is being referenced in the error message.
  Update IDoc Structure: If the segment definition is incorrect, you may need to update the IDoc structure to include the missing field. This may involve modifying the IDoc type or segment.
  Review Custom Code: If there is custom code involved in the IDoc processing, review it to ensure that it is correctly referencing the fields in the segment.
  Data Mapping: Ensure that the data being sent to the IDoc is correctly mapped to the fields defined in the segment. This may involve checking the mapping logic in the middleware or integration tool being used.
  Testing: After making changes, perform thorough testing to ensure that the IDoc is processed correctly without errors.
  
  Related Information:
  
  Transaction Codes:
  
  WE30: IDoc Types
  WE31: Segment Types
  WE20: Partner Profiles (to check the configuration for the partner involved)
  
  
  Documentation: Refer to SAP documentation for IDoc processing and segment definitions for more detailed information on how to define and manage IDocs.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error message.
  
  By following these steps, you should be able to identify the root cause of the M2798 error and implement the necessary changes to resolve it.