How To Fix /IWBEP/SBUI023 - Unknown function code '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/SBUI -

• Message number: 023

• Message text: Unknown function code '&1'

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/SBUI023 - Unknown function code '&1' ?

  The SAP error message /IWBEP/SBUI023 Unknown function code '&1' typically occurs in the context of SAP Gateway or SAP Fiori applications. This error indicates that the system is trying to execute a function code that is not recognized or does not exist in the current context.
  Causes:
  
  Incorrect Function Code: The function code being called may be misspelled or not defined in the system.
  Missing Authorization: The user may not have the necessary authorizations to execute the function code.
  Configuration Issues: There may be issues with the configuration of the OData service or the Fiori application.
  Version Mismatch: The application or service might be outdated or incompatible with the current version of the SAP system.
  Transport Issues: If the function code was recently transported from another system, it may not have been properly activated or configured.
  
  Solutions:
  
  Check Function Code: Verify that the function code being called is correct and exists in the system. You can do this by checking the relevant OData service or application configuration.
  Authorization Check: Ensure that the user has the necessary authorizations to access the function code. You can check this in transaction SU53 or by reviewing the user's roles and authorizations.
  Service Activation: If the function code is part of an OData service, ensure that the service is activated in the SAP Gateway using transaction /IWFND/MAINT_SERVICE.
  Review Configuration: Check the configuration of the Fiori application or OData service in transaction /IWFND/MAINT_SERVICE and ensure that all necessary settings are correct.
  Check Logs: Review the application logs (transaction SLG1) and the Gateway error logs (transaction /IWFND/ERROR_LOG) for more detailed error messages that can provide additional context.
  Update or Transport: If the function code was recently transported, ensure that all necessary objects are included in the transport and that they are properly activated in the target system.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific error message or function code for any known issues or patches.
  Documentation: Review the official SAP documentation for the specific Fiori application or OData service to ensure that all prerequisites and configurations are met.
  Community Forums: Consider searching or posting in SAP Community forums for additional insights from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution. If the issue persists, it may be beneficial to consult with your SAP Basis or development team for further assistance.