How To Fix FL371 - CHANGING parameters are not allowed in the update task

SAP Error Message - Details

• Message type: E = Error

• Message class: FL - Function Builder messages

• Message number: 371

• Message text: CHANGING parameters are not allowed in the update task

What causes this issue?

You have defined CHANGING parameters for an update function module.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Delete the CHANGING parameters in the update function module.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FL371 - CHANGING parameters are not allowed in the update task ?

  The SAP error message FL371, which states "CHANGING parameters are not allowed in the update task," typically occurs when there is an attempt to modify a parameter that is defined as a "CHANGING" parameter within an update task. Update tasks in SAP are designed to handle asynchronous processing, and certain restrictions apply to the types of parameters that can be used.
  Cause:
  
  Update Task Restrictions: In an update task, only certain types of parameters are allowed. Specifically, "CHANGING" parameters are not permitted because they imply that the data can be modified, which is not allowed in the context of an update task.
  Function Module Definition: The function module being called in the update task may have been defined with "CHANGING" parameters, which is causing the error when the update task tries to execute it.
  
  Solution:
  
  Review Function Module: Check the function module that is being called in the update task. If it has "CHANGING" parameters, consider changing them to "IMPORTING" parameters if the data does not need to be modified.
  Use IMPORTING Parameters: If the parameters need to be passed to the function module but do not need to be changed, redefine them as "IMPORTING" parameters.
  Refactor Logic: If the logic requires changing parameters, consider refactoring the code to avoid using an update task for that particular operation. You might need to handle the logic synchronously instead.
  Error Handling: Implement error handling to catch this specific error and log it for further analysis.
  
  Related Information:
  
  Update Task: An update task in SAP is a mechanism for processing data changes asynchronously. It allows for the separation of data processing from user interaction, improving performance and user experience.
  Function Module: A function module is a reusable piece of code in SAP that can be called from various programs. It can have different types of parameters: IMPORTING, EXPORTING, CHANGING, and TABLES.
  SAP Documentation: For more detailed information, refer to the SAP Help Portal or the ABAP documentation regarding function modules and update tasks.
  
  By addressing the parameter definitions and ensuring compliance with the restrictions of update tasks, you should be able to resolve the FL371 error.