How To Fix ESH_SEARCH006 - Language &1 is unknown. Check the UI configuration

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_SEARCH - ESH Search

• Message number: 006

• Message text: Language &1 is unknown. Check the UI configuration

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 ESH_SEARCH006 - Language &1 is unknown. Check the UI configuration ?

  The SAP error message ESH_SEARCH006 with the description "Language &1 is unknown. Check the UI configuration" typically occurs in the context of the SAP Enterprise Search or when using the SAP Fiori applications. This error indicates that the system is unable to recognize the specified language code in the user interface configuration.
  Cause:
  
  Invalid Language Code: The language code specified in the configuration is not valid or not supported by the system.
  Missing Language Installation: The language might not be installed in the SAP system.
  Configuration Issues: There may be issues in the UI configuration settings, such as incorrect entries in the configuration tables or missing entries for the specified language.
  User Profile Settings: The user profile may be set to a language that is not supported or not installed.
  
  Solution:
  
  
  Check Language Installation:
  
  Go to transaction code SMLT (Language Transport) and check if the required language is installed in the system.
  If the language is not installed, you may need to install it using the appropriate transport.
  
  
  
  Verify UI Configuration:
  
  Check the UI configuration settings in the relevant transaction (e.g., /IWFND/MAINT_SERVICE for OData services).
  Ensure that the language code is correctly specified and matches the installed languages.
  
  
  
  User Profile Settings:
  
  Check the user settings in transaction SU01 (User Maintenance) to ensure that the user’s default language is set to a valid and installed language.
  
  
  
  Check Language-Specific Settings:
  
  If you are using custom applications or configurations, ensure that all language-specific settings are correctly defined.
  
  
  
  Review Logs:
  
  Check the application logs (transaction SLG1) for any additional error messages or warnings that might provide more context about the issue.
  
  
  
  Restart Services:
  
  Sometimes, restarting the relevant services or the SAP Gateway can resolve transient issues.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP Help Portal for documentation related to the specific application or module you are working with.
  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 and resolve the cause of the ESH_SEARCH006 error in your SAP system.