How To Fix IDOC_ADAPTER426 - Mandatory node '&1' missing in structure &2 &3

SAP Error Message - Details

• Message type: E = Error

• Message class: IDOC_ADAPTER - Messages for the IDoc Adapter

• Message number: 426

• Message text: Mandatory node '&1' missing in structure &2 &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message IDOC_ADAPTER426 - Mandatory node '&1' missing in structure &2 &3 ?

  The SAP error message IDOC_ADAPTER426 indicates that a mandatory node is missing in the structure of an IDoc (Intermediate Document). This error typically occurs during the processing of IDocs when the expected data structure does not conform to the required schema, leading to the failure of the IDoc processing.
  Cause:
  The error is caused by one or more of the following reasons:
  
  Missing Data: The IDoc being processed does not contain a mandatory segment or field that is required by the target system or the IDoc type definition.
  Incorrect Mapping: There may be an issue with the mapping of fields between the source and target systems, leading to the omission of required fields.
  IDoc Structure Changes: If there have been changes to the IDoc structure (e.g., adding mandatory fields) and the sending system has not been updated accordingly, this can lead to missing mandatory nodes.
  Configuration Issues: Incorrect configuration in the IDoc processing settings or in the partner profiles can also lead to this error.
  
  Solution:
  To resolve the IDOC_ADAPTER426 error, you can take the following steps:
  
  Check IDoc Structure: Verify the IDoc structure in transaction WE30 (IDoc Types) or WE31 (IDoc Segments) to ensure that all mandatory fields are defined correctly.
  Review IDoc Data: Use transaction WE02 or WE05 to analyze the IDoc that triggered the error. Check the segments and fields to identify which mandatory node is missing.
  Update Source System: If the source system is missing data, ensure that it is sending all required fields. This may involve updating the application logic or data entry processes.
  Mapping Configuration: If you are using middleware (like SAP PI/PO), check the mapping configuration to ensure that all mandatory fields are being populated correctly.
  Partner Profile Settings: Review the partner profile settings in transaction WE20 to ensure that the IDoc processing settings are correct and that the expected IDoc type is configured properly.
  Testing: After making the necessary changes, test the IDoc processing again to ensure that the error is resolved.
  
  Related Information:
  
  IDoc Types: Understanding the structure of IDocs and the specific segments and fields that are mandatory for your business process is crucial.
  SAP Documentation: Refer to SAP Help documentation for detailed information on IDocs, including how to define and manage them.
  Transaction Codes:
  
  WE02: Display IDocs
  WE05: IDoc List
  WE30: IDoc Type Development
  WE31: IDoc Segment Development
  WE20: Partner Profiles
  
  
  
  By following these steps and utilizing the related information, you should be able to identify and resolve the cause of the IDOC_ADAPTER426 error effectively.