SAP GUI Notification Options
Open the Options
window by clicking on the Customize Local Layout
Button.
In the left-hand tree open the Interaction Design
folder and choose Notifications
.
Under Messages
select the checkbox for Show error messages in a dialog box
. Press Apply
and OK
to confirm.
Note: If this setting is active all error messages will be displayed in a pop-up. This also works for success and warning messages if required.