How To Fix /AIF/CUSTOM_FUNCTION026 - No function type selected

SAP Error Message - Details

• Message type: E = Error

• Message class: /AIF/CUSTOM_FUNCTION -

• Message number: 026

• Message text: No function type selected

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /AIF/CUSTOM_FUNCTION026 - No function type selected ?

  The SAP error message /AIF/CUSTOM_FUNCTION026 No function type selected typically occurs in the context of the Application Interface Framework (AIF) when a function type is not specified or is missing in the configuration or during the execution of a custom function.
  Cause:
  
  Missing Configuration: The function type may not have been defined in the AIF configuration.
  Incorrect Mapping: The mapping between the interface and the function type may not be correctly set up.
  Custom Function Implementation: If you are using a custom function, it may not have been implemented correctly, or the function type may not have been assigned.
  User Input Error: The user may not have selected a function type when executing the process.
  
  Solution:
  
  
  Check Configuration:
  
  Go to the AIF configuration and ensure that the function type is defined for the relevant interface.
  Verify that the function type is correctly assigned to the interface mapping.
  
  
  
  Review Custom Function Implementation:
  
  If you are using a custom function, check the implementation to ensure that it correctly handles the function type.
  Ensure that the function type is being passed correctly in the function call.
  
  
  
  Interface Mapping:
  
  Review the interface mapping settings in AIF to ensure that the function type is correctly mapped to the corresponding interface.
  
  
  
  User Input:
  
  If the error occurs during user input, ensure that the user selects a function type before executing the process.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the AIF process to identify where the function type is being lost or not set.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  Documentation: Review the official SAP documentation for AIF to understand how function types are configured and used.
  Community Forums: Look for discussions in SAP community forums or other user groups where similar issues may have been addressed.
  
  If the problem continues after following these steps, it may be beneficial to consult with your SAP Basis or AIF support team for further assistance.