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

02400 - Overview

• 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.

02400 - Details

• 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