How To Fix ECCEDI102 - Formal IDoc error: first segment is not from type &2

SAP Error Message - Details

• Message type: E = Error

• Message class: ECCEDI - IS-U Deregulation: IDoc Processing

• Message number: 102

• Message text: Formal IDoc error: first segment is not from type &2

What causes this issue?

The system attempted to process an IDoc with type <ZH>&V1&</>, however,
the first segment has type <ZH>&V3&</> instead of the expected type
<ZH>&V2&</>.

System Response

The IDoc cannot be processed.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ECCEDI102 - Formal IDoc error: first segment is not from type &2 ?

  The SAP error message ECCEDI102, which states "Formal IDoc error: first segment is not from type &2," typically occurs when there is an issue with the structure or format of the IDoc being processed. This error indicates that the first segment of the IDoc does not match the expected segment type defined in the IDoc type.
  Cause:
  
  Incorrect IDoc Structure: The IDoc being sent or received does not start with the expected segment type. Each IDoc has a defined structure, and the first segment must match the type specified in the IDoc definition.
  IDoc Type Mismatch: The IDoc type being processed may not correspond to the data being sent. For example, if the IDoc is expected to be of type ORDERS, but the first segment is of type INVOIC, this error will occur.
  Data Corruption: The IDoc data may be corrupted or improperly formatted, leading to the first segment being unrecognized.
  Configuration Issues: There may be configuration issues in the IDoc processing settings, such as incorrect mapping or settings in the partner profile.
  
  Solution:
  
  Check IDoc Structure: Verify that the IDoc being sent or received has the correct structure. Use transaction WE60 to review the IDoc type and ensure that the first segment matches the expected type.
  Validate IDoc Data: Use transaction WE19 (IDoc test tool) to simulate the IDoc processing. This allows you to test the IDoc with the expected structure and see if the error persists.
  Review Partner Profile: Check the partner profile settings in transaction WE20 to ensure that the correct IDoc type is configured for the sender and receiver.
  Check for Data Corruption: If the IDoc is being generated programmatically, ensure that the data is being populated correctly and that there are no issues in the code that generates the IDoc.
  Consult Documentation: Review the documentation for the specific IDoc type you are working with to ensure that all required segments are included and correctly formatted.
  
  Related Information:
  
  IDoc Types: Each IDoc type has a specific structure defined in the SAP system. Understanding the segments and their order is crucial for successful IDoc processing.
  Transaction Codes:
  
  WE60: Display IDoc Types
  WE19: Test IDoc Processing
  WE20: Maintain Partner Profiles
  WE02: Display IDocs
  
  
  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 ECCEDI102 error and implement a solution to resolve it.