SAP GUI Notification Options

Open the Options window by clicking on the Customize Local Layout Button.

SAP GUI Open Options

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.

SAP GUI Open Options Notification

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.

SAP GUI Display error in popup