How To Fix IM409 - Function code not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: IM - Maintenance notifications

• Message number: 409

• Message text: Function code not defined

What causes this issue?

You tried to complete a PM notification from the list.

System Response

The system could not find the internal function code (LIAR) in the
control table (TC33).

How to fix this error?

Inform your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IM409 - Function code not defined ?

  The SAP error message IM409 ("Function code not defined") typically occurs when a user attempts to execute a function in a transaction or program that does not have a corresponding function code defined in the system. This can happen for various reasons, including configuration issues, missing authorizations, or incorrect program logic.
  Causes of IM409 Error
  
  Missing Function Code: The function code that the program is trying to call is not defined in the GUI or the program logic.
  Authorization Issues: The user may not have the necessary authorizations to execute the function code.
  Custom Development: If the transaction or program has been customized, the function code may not have been properly defined or linked.
  Incorrect Transaction Code: The user may be using an incorrect or outdated transaction code that does not correspond to any defined function.
  Program Errors: There may be bugs or errors in the ABAP code that prevent the function code from being recognized.
  
  Solutions to IM409 Error
  
  
  Check Function Code Definition:
  
  Use transaction SE80 (Object Navigator) or SE37 (Function Builder) to check if the function code is defined.
  Ensure that the function code is correctly linked to the transaction or program.
  
  
  
  Review Authorizations:
  
  Check the user’s authorizations using transaction SU53 or SUIM to ensure they have the necessary permissions to execute the function.
  If needed, work with your security team to grant the appropriate authorizations.
  
  
  
  Debugging:
  
  If you have access to debugging tools, you can set breakpoints in the ABAP code to see where the error occurs and why the function code is not recognized.
  Look for any conditional logic that might be preventing the function code from being executed.
  
  
  
  Check Custom Code:
  
  If the error occurs in a custom program, review the code to ensure that all function codes are properly defined and that there are no typos or logical errors.
  
  
  
  Transaction Code Verification:
  
  Verify that the transaction code being used is correct and corresponds to the intended function. You can check this in transaction SE93 (Transaction Codes).
  
  
  
  Consult Documentation:
  
  Review any available documentation or release notes for the specific SAP version you are using, as there may be known issues or changes related to function codes.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance. Provide them with detailed information about the error, including the transaction code, user ID, and any relevant logs.
  
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE80, SE37, SU53, and SE93 for troubleshooting.
  SAP Notes: Search the SAP Support Portal for any notes related to the IM409 error, as there may be specific patches or updates that address this issue.
  User Forums: Check SAP community forums or other user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the cause of the IM409 error and implement a suitable solution.