How To Fix /AIF/CUSTOM_FUNCTION028 - No message number selected

SAP Error Message - Details

• Message type: E = Error

• Message class: /AIF/CUSTOM_FUNCTION -

• Message number: 028

• Message text: No message number selected

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /AIF/CUSTOM_FUNCTION028 - No message number selected ?

  The SAP error message /AIF/CUSTOM_FUNCTION028 No message number selected typically occurs in the context of the Application Interface Framework (AIF) when there is an issue with message processing. This error indicates that the system is unable to find a message number that is required for processing a specific interface or message.
  Cause:
  
  Missing Configuration: The message number may not be configured correctly in the AIF settings.
  Incorrect Mapping: There might be an issue with the mapping of the message type to the corresponding message number.
  Data Issues: The data being processed may not conform to the expected structure, leading to the inability to select a message number.
  Custom Functionality: If there are custom functions or enhancements in place, they may not be handling message selection correctly.
  
  Solution:
  
  
  Check AIF Configuration:
  
  Go to the AIF configuration settings and ensure that the message types and message numbers are correctly defined.
  Verify that the message number is assigned to the correct message type.
  
  
  
  Review Mapping:
  
  Check the mapping configuration for the interface in question. Ensure that the mapping is correctly set up to link the incoming data to the appropriate message number.
  
  
  
  Data Validation:
  
  Validate the data being sent to the AIF. Ensure that it meets the expected format and structure required for processing.
  Look for any missing or incorrect fields that might prevent the selection of a message number.
  
  
  
  Debugging:
  
  If you have access to the development environment, consider debugging the custom function or the AIF processing logic to identify where the message number selection is failing.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to AIF and the specific interface you are working with. There may be additional configuration steps or prerequisites that need to be addressed.
  
  
  
  Check for Notes and Patches:
  
  Look for any SAP Notes or patches that may address this specific error. Sometimes, known issues are documented with recommended solutions.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like AIF or SIMG to access the relevant configuration settings.
  SAP Community: Consider checking the SAP Community forums for similar issues and solutions shared by other users.
  SAP Support: If the issue persists, you may need to raise a support ticket with SAP for further assistance.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.