Required action is not possible in the WebGUI

What causes this issue?

You are working with the WebGUI. The function you chose is not possible
in the WebGUI.

System Response

The system does not perform the action.

How to fix this error?

Repeat the required function with a WinGUI.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.