How To Fix 28109 - Error in predefined function &1

28109 - Overview

• 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.

28109 - Details

• 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