How To Fix FC191 - Function module & does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: FC - FI configuration error messages

• Message number: 191

• Message text: Function module & does not exist

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FC191 - Function module & does not exist ?

  The SAP error message FC191 indicates that a specific function module does not exist in the system. This error typically arises when a program or transaction attempts to call a function module that is either not defined, has been deleted, or is not available in the current SAP system environment.
  Causes of FC191 Error
  
  Function Module Not Created: The function module may not have been created in the system.
  Incorrect Name: There may be a typo or incorrect naming in the code where the function module is being called.
  Transport Issues: The function module may exist in the development environment but has not been transported to the production environment.
  Authorization Issues: The user may not have the necessary authorizations to access the function module.
  System Version: The function module may exist in a different version of SAP or in a different client.
  
  Solutions to FC191 Error
  
  
  Check Function Module Existence:
  
  Use transaction code SE37 (Function Builder) to check if the function module exists. Enter the name of the function module and see if it is available.
  
  
  
  Correct the Name:
  
  Verify the spelling and case sensitivity of the function module name in the code. Ensure that it matches exactly with the defined function module.
  
  
  
  Transport the Function Module:
  
  If the function module exists in the development environment but not in production, ensure that it is included in a transport request and that the transport has been successfully imported into the target system.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to execute the function module. This can be checked using transaction SU53 or by consulting with your security team.
  
  
  
  Consult Documentation:
  
  If the function module is part of a standard SAP package or enhancement, check the SAP documentation or notes for any changes or deprecations.
  
  
  
  Debugging:
  
  If you have access to the ABAP code, you can set breakpoints or use debugging tools to trace where the function module is being called and gather more context about the error.
  
  
  
  Related Information
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific function module or the error message.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that may provide more context.
  ABAP Development: If you are an ABAP developer, you may need to create the function module if it is custom or modify the existing code to handle the absence of the function module gracefully.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or development team for further assistance.