How To Fix E0078 - EDI: Syntax error in IDoc (segment cannot be identified)

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 078

• Message text: EDI: Syntax error in IDoc (segment cannot be identified)

What causes this issue?

The segment &v3& does not occur at the current level of the basic type
&v1& (extension &v2&).
This error can have several reasons:
The segment &v3& is assigned to a group whose header segment does not
occur.
The segment &v3& does not exist in the syntax description of the basic
type &v1& (extension &v2&).
The sequence of segments in the group in which the segment appears is
incorrect.
Previous errors ('mandatory' segment or group missing) may be due to
this error.

How to fix this error?

Please check the <DS:GLOS.IDoc>IDoc</> or the syntax description of the
basic type &v1& (extension &v2&).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0078 - EDI: Syntax error in IDoc (segment cannot be identified) ?

  The SAP error message E0078, which indicates a "Syntax error in IDoc (segment cannot be identified)," typically occurs during the processing of an IDoc (Intermediate Document) in the Electronic Data Interchange (EDI) framework. This error suggests that the IDoc structure does not conform to the expected format, making it impossible for the system to identify one or more segments within the IDoc.
  Causes:
  
  Incorrect IDoc Structure: The IDoc may not adhere to the expected structure defined in the IDoc type. This could be due to missing segments, incorrect segment order, or invalid segment names.
  Data Format Issues: The data within the segments may not match the expected format or data type, leading to parsing errors.
  Version Mismatch: The IDoc version being used may not be compatible with the receiving system's configuration.
  Configuration Issues: There may be issues with the configuration of the IDoc type or message type in the SAP system.
  Corrupted IDoc: The IDoc may be corrupted during transmission or processing.
  
  Solutions:
  
  Check IDoc Structure: Verify that the IDoc structure matches the expected format. You can use transaction WE30 (IDoc Types) to review the structure of the IDoc type being processed.
  Validate Data: Ensure that the data being sent in the IDoc segments is valid and conforms to the expected data types and formats.
  Review IDoc Configuration: Check the configuration settings for the IDoc type and message type in transaction WE20 (Partner Profiles) and ensure they are correctly set up.
  Use IDoc Monitoring Tools: Utilize transaction WE02 or WE05 to monitor IDocs and identify any issues with the specific IDoc that generated the error.
  Test with Sample Data: If possible, test the IDoc with known good data to see if the error persists. This can help isolate whether the issue is with the data being sent.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as there may be fixes related to IDoc processing.
  
  Related Information:
  
  IDoc Types: IDocs are defined by their types, which specify the structure and segments. Each IDoc type can have multiple segments, and each segment can have multiple fields.
  EDI Configuration: Proper configuration of EDI settings in SAP is crucial for successful IDoc processing. This includes partner profiles, message types, and port settings.
  Error Logs: Review error logs and application logs (transaction SLG1) for additional context on the error and any related issues.
  
  By following these steps, you should be able to identify the root cause of the E0078 error and implement a solution to resolve it.