How To Fix 1FA459 - Errors occurred during &1 in customer function module &2

SAP Error Message - Details

• Message type: E = Error

• Message class: 1FA - Betragskündigungen und Freibeträge

• Message number: 459

• Message text: Errors occurred during &1 in customer function module &2

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 1FA459 - Errors occurred during &1 in customer function module &2 ?

  The SAP error message "1FA459 Errors occurred during &1 in customer function module &2" typically indicates that there was an issue during the execution of a custom function module in SAP. This error can arise in various contexts, such as during data processing, report execution, or when calling a custom function from standard SAP programs.
  Cause:
  
  Custom Code Issues: The error is often caused by bugs or exceptions in the custom function module (&2). This could be due to incorrect logic, unhandled exceptions, or data inconsistencies.
  Data Issues: The input data being processed may not meet the expected format or constraints, leading to runtime errors.
  Configuration Problems: There may be issues with the configuration settings that the custom function relies on.
  Authorization Issues: The user executing the function may not have the necessary authorizations to perform the operation.
  
  Solution:
  
  
  Debugging: 
  
  Use the SAP debugger to step through the custom function module (&2) to identify where the error occurs. Look for any unhandled exceptions or logical errors.
  Check the input parameters being passed to the function to ensure they are valid.
  
  
  
  Error Handling: 
  
  Implement proper error handling in the custom function module to catch exceptions and provide meaningful error messages.
  
  
  
  Data Validation: 
  
  Validate the input data before processing it in the function module. Ensure that all required fields are populated and that the data adheres to expected formats.
  
  
  
  Review Configuration: 
  
  Check any related configuration settings that the function module may depend on. Ensure they are correctly set up.
  
  
  
  Authorization Check: 
  
  Verify that the user has the necessary authorizations to execute the function module. If not, adjust the user roles accordingly.
  
  
  
  Consult Documentation: 
  
  Review any documentation related to the custom function module for additional context on its expected behavior and requirements.
  
  
  
  Related Information:
  
  Transaction Codes: You may want to check transaction codes like SE80 (Object Navigator) or SE37 (Function Module) to analyze the custom function module.
  SAP Notes: Search for relevant SAP Notes that might address known issues with custom function modules or provide guidance on best practices.
  Community Forums: Consider checking SAP Community or other forums for similar issues reported by other users.
  
  If the problem persists after following these steps, it may be beneficial to consult with a developer who is familiar with the custom code or reach out to SAP support for further assistance.