How To Fix EA310 - Structure of segment &1 is unknown (field name &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: EA - IDoc Basis Messages

• Message number: 310

• Message text: Structure of segment &1 is unknown (field name &2)

What causes this issue?

The system cannot fully check the structure of segment '&v1&'. The check
of the data element of field '&v2&' returned an error.

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 consistency of the segment definition using the IDoc
definition tools.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EA310 - Structure of segment &1 is unknown (field name &2) ?

  The SAP error message EA310, which states "Structure of segment &1 is unknown (field name &2)," typically occurs in the context of Electronic Data Interchange (EDI) or Intermediate Document (IDoc) processing. This error indicates that the system is unable to recognize the structure of a specific segment in the IDoc or EDI message, which can be due to several reasons.
  Causes:
  
  
  Missing or Incorrect Segment Definition: The segment definition for the specified segment (&1) is not available in the system. This could happen if the segment is not defined in the relevant IDoc type or EDI message type.
  
  
  Incorrect Mapping: The mapping between the IDoc segments and the corresponding data structures may be incorrect or incomplete.
  
  
  Custom Development Issues: If there are custom segments or modifications in the IDoc structure, they may not be properly defined or activated in the system.
  
  
  Version Mismatch: There may be a version mismatch between the sender and receiver systems, leading to unrecognized segments.
  
  
  Transport Issues: If the IDoc or EDI structure was recently transported from a development environment to a production environment, it may not have been properly activated.
  
  
  Solutions:
  
  
  Check Segment Definition: Verify that the segment definition for &1 exists in the IDoc type or EDI message type. You can do this by using transaction WE30 (for IDoc types) or WE81 (for EDI message types).
  
  
  Review Mapping: Ensure that the mapping between the IDoc segments and the data structures is correct. You can check this in transaction WE60 (for documentation) or WE20 (for partner profiles).
  
  
  Activate Custom Segments: If you have custom segments, ensure they are properly defined and activated. You can do this in transaction WE30.
  
  
  Check for Updates: If there are any recent changes or updates to the IDoc structure, ensure that all relevant systems are updated and synchronized.
  
  
  Consult Documentation: Review the documentation for the specific IDoc type or EDI message type to ensure that you are using the correct structure.
  
  
  Debugging: If the issue persists, consider debugging the IDoc processing to identify where the error occurs. You can use transaction WE02 to view IDoc statuses and errors.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  WE30: IDoc Type Development
  WE20: Partner Profiles
  WE02: Display IDocs
  WE60: IDoc Documentation
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific IDoc type or EDI message type you are working with.
  
  
  Community Forums: Consider searching or posting in SAP community forums for additional insights or similar experiences from other users.
  
  
  By following these steps, you should be able to identify the cause of the EA310 error and implement a solution to resolve it.