How To Fix /AIF/CUSTOM_FUNCTION020 - No language selected

SAP Error Message - Details

• Message type: E = Error

• Message class: /AIF/CUSTOM_FUNCTION -

• Message number: 020

• Message text: No language selected

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /AIF/CUSTOM_FUNCTION020 - No language selected ?

  The SAP error message /AIF/CUSTOM_FUNCTION020 No language selected typically occurs in the context of the Application Interface Framework (AIF) when a language parameter is not specified or is missing in the configuration or during the execution of a function.
  Cause:
  
  Missing Language Parameter: The error usually indicates that the system is expecting a language parameter to be provided, but it is either not set or is set to an invalid value.
  Configuration Issues: There may be issues in the configuration of the AIF or the custom function that is being called, where the language is not being passed correctly.
  User Profile Settings: The user profile may not have a default language set, leading to the system not knowing which language to use.
  
  Solution:
  
  Check Function Parameters: Ensure that the function being called includes a valid language parameter. If you are using a custom function, verify that the language is being passed correctly.
  Set Default Language: Make sure that the user profile has a default language set. You can check this in the user settings (transaction SU01) under the "Defaults" tab.
  Review AIF Configuration: Go through the AIF configuration settings to ensure that the language settings are correctly defined. This includes checking the interface configuration and any related mappings.
  Debugging: If you have access to debugging tools, you can set breakpoints in the custom function to see where the language parameter is being set or passed. This can help identify if the issue is in the function logic or in the data being passed to it.
  Consult Documentation: Review the SAP documentation related to AIF and custom functions to ensure that all required parameters are being handled correctly.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context on how to handle language settings in AIF.
  Community Forums: Look for discussions in SAP Community or other forums where similar issues have been reported and resolved.
  SAP Support: If the issue persists and you are unable to resolve it, consider reaching out to SAP Support for assistance, providing them with details of the error and the context in which it occurs.
  
  By following these steps, you should be able to identify and resolve the issue related to the /AIF/CUSTOM_FUNCTION020 No language selected error message.