How To Fix 28109 - Error in predefined function &1

SAP Error Message - Details

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 109

• Message text: Error in predefined function &1

What causes this issue?

An error occurred when you entered predefined expression &V1&.

System Response

The cursor shows where the error occurs.

How to fix this error?

Check your entries and correct your entry as appropriate.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 28109 - Error in predefined function &1 ?

  The SAP error message 28109, which states "Error in predefined function &1," typically indicates that there is an issue with a predefined function in the SAP system. This error can occur in various contexts, such as during the execution of a program, report, or transaction that utilizes a specific function module or method.
  Causes:
  
  Function Module Issues: The predefined function may not be correctly implemented or may have been modified in a way that causes it to fail.
  Parameter Mismatch: The parameters being passed to the function may not match the expected types or formats.
  Authorization Issues: The user executing the function may not have the necessary authorizations to access or execute the function.
  Data Issues: The data being processed by the function may be invalid or corrupt, leading to a failure in execution.
  System Configuration: There may be configuration issues in the SAP system that affect the execution of the function.
  
  Solutions:
  
  Check Function Module: Use transaction SE37 to check the function module associated with the error. Ensure that it is active and correctly implemented.
  Review Parameters: Verify that the parameters being passed to the function are correct and in the expected format. This includes checking for data types and required fields.
  Authorization Check: Ensure that the user has the necessary authorizations to execute the function. You can check this using transaction SU53 or by reviewing the user's roles and authorizations.
  Data Validation: Validate the data being processed to ensure it is correct and does not contain any invalid entries that could cause the function to fail.
  Debugging: If you have access to the development environment, you can debug the program or transaction to identify the exact point of failure and gather more information about the error.
  Consult Documentation: Review the SAP documentation or notes related to the specific function to see if there are known issues or additional requirements.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Community Forums: SAP Community and other forums can be valuable resources for finding similar issues faced by other users and their solutions.
  System Logs: Review system logs (transaction SLG1) for any additional error messages or warnings that may provide context for the failure.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis or development team for further investigation.