How To Fix 02400 - Function module & is not flagged as an update module

SAP Error Message - Details

• Message type: E = Error

• Message class: 02 -

• Message number: 400

• Message text: Function module & is not flagged as an update module

What causes this issue?

The function module & is not an update 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?

Go into the Function Library in the ABAP/4 Development Workbench and
check whether & is flagged as an update function module with the
attribute 'Update with immediate start'.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 02400 - Function module & is not flagged as an update module ?

  The SAP error message "02400 Function module & is not flagged as an update module" typically occurs when a function module that is expected to be executed in an update task is not properly flagged as an update module. This can happen in various scenarios, particularly when dealing with updates in SAP systems.
  Cause:
  
  Function Module Configuration: The function module in question is not marked as an update function module in its attributes. This means that it cannot be called in an update task.
  Incorrect Call: The function module is being called in a context where an update module is expected, but it is not set up to handle that.
  Development Issues: If the function module was recently created or modified, it may not have been correctly flagged as an update module.
  
  Solution:
  
  
  Check Function Module Attributes:
  
  Go to transaction SE37 (Function Module) and enter the name of the function module that is causing the error.
  Check the attributes of the function module. Ensure that the "Update" checkbox is selected. If it is not, you will need to modify the function module to set it as an update module.
  
  
  
  Modify the Function Module:
  
  If you have the necessary authorizations, you can change the function module to be an update module. 
  After making changes, activate the function module.
  
  
  
  Review Calling Program:
  
  Ensure that the program or transaction that is calling the function module is doing so correctly. If it is supposed to be an update task, ensure that it is set up to call update function modules.
  
  
  
  Testing:
  
  After making the necessary changes, test the functionality to ensure that the error no longer occurs.
  
  
  
  Consult Documentation:
  
  If you are unsure about the changes, consult SAP documentation or reach out to your SAP Basis or development team for guidance.
  
  
  
  Related Information:
  
  Update Task: In SAP, an update task is a process that allows changes to be made to the database in a way that ensures data integrity. Update function modules are specifically designed to be called in this context.
  Transaction Codes: Familiarize yourself with transaction codes like SE37 (Function Module), SE80 (Object Navigator), and SE11 (Data Dictionary) for further investigation and modifications.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific function module or error message.
  
  If you continue to experience issues after following these steps, it may be beneficial to consult with an SAP expert or your organization's SAP support team for further assistance.