How To Fix /AIF/IDOC_GEN_STR021 - &1 is not a message type

SAP Error Message - Details

• Message type: E = Error

• Message class: /AIF/IDOC_GEN_STR -

• Message number: 021

• Message text: &1 is not a message type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /AIF/IDOC_GEN_STR021 - &1 is not a message type ?

  The SAP error message /AIF/IDOC_GEN_STR021 &1 is not a message type typically occurs in the context of the Application Interface Framework (AIF) when dealing with IDoc processing. This error indicates that the system is unable to recognize the specified message type, which is essential for processing IDocs.
  Cause:
  
  Incorrect Message Type: The message type specified in the IDoc is either misspelled or does not exist in the system.
  Configuration Issues: The message type may not be properly configured in the AIF or IDoc settings.
  Missing Metadata: The necessary metadata for the message type may not be available in the system.
  Transport Issues: If the message type was recently transported from another system, it may not have been activated or may be missing.
  
  Solution:
  
  
  Verify Message Type: Check the message type specified in the IDoc. Ensure that it is correctly spelled and exists in the system. You can do this by using transaction WE30 (IDoc Types) or WE81 (Message Types).
  
  
  Check Configuration: Ensure that the message type is properly configured in the AIF settings. You can check the configuration in transaction AIF or SPRO under the relevant AIF settings.
  
  
  Activate Metadata: If the message type is newly created or transported, ensure that it is activated. You can do this by going to the relevant configuration area in AIF.
  
  
  Review Transport Requests: If the message type was recently transported, check the transport request to ensure that all necessary objects were included and activated in the target system.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to AIF and IDoc processing for any specific requirements or known issues.
  
  
  Debugging: If the issue persists, consider debugging the AIF processing to identify where the error is occurring. This may require assistance from a developer or SAP Basis team.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  WE30: IDoc Types
  WE81: Message Types
  AIF: Application Interface Framework
  SPRO: Customizing Implementation Guide
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  Community Forums: Consider searching or posting in SAP community forums for insights from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.