How To Fix IDOC_ADAPTER420 - Select an IDoc type link

SAP Error Message - Details

• Message type: E = Error

• Message class: IDOC_ADAPTER - Messages for the IDoc Adapter

• Message number: 420

• Message text: Select an IDoc type link

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message IDOC_ADAPTER420 - Select an IDoc type link ?

  The SAP error message IDOC_ADAPTER420 typically indicates that there is an issue with the IDoc type being used in the process. This error can occur in various scenarios, such as when trying to process an IDoc that is not correctly defined or when there is a mismatch between the IDoc type and the expected configuration in the system.
  Cause
  
  Incorrect IDoc Type: The IDoc type specified in the configuration does not exist or is not correctly defined in the system.
  Mapping Issues: There may be issues with the mapping of the IDoc type to the corresponding message type or process.
  Configuration Errors: The IDoc processing configuration in the SAP system may not be set up correctly, leading to the inability to process the IDoc.
  Missing or Incomplete Metadata: The necessary metadata for the IDoc type may be missing or incomplete, causing the system to fail in recognizing the IDoc.
  
  Solution
  
  Verify IDoc Type: Check the IDoc type being used in the process. Ensure that it is correctly defined in the SAP system. You can do this by using transaction WE30 (IDoc Type Development) to view the IDoc type definition.
  Check Configuration: Review the configuration settings for the IDoc processing. This includes checking the partner profiles (transaction WE20) and ensuring that the correct message type and IDoc type are linked.
  Mapping Review: If you are using a middleware (like SAP PI/PO), ensure that the mapping for the IDoc type is correctly set up and that it corresponds to the expected structure.
  Test IDoc: Use transaction WE19 to create a test IDoc based on the IDoc type in question. This can help you identify if the IDoc type is functioning correctly.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as sometimes bugs in earlier versions can lead to such errors.
  
  Related Information
  
  Transaction Codes:
  
  WE30: IDoc Type Development
  WE20: Partner Profiles
  WE19: Test Tool for IDocs
  
  
  Documentation: Refer to SAP Help documentation for IDocs and the specific IDoc type you are working with for more detailed information.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address known issues related to IDoc processing and the specific error message.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or technical team for further investigation.