Canvas enables you to configure Toast Messages to quickly notify the user about an operation through a small pop-up. Toast Messages will be briefly displayed over the current screen without impeding the current activity and they will disappear after the timeout.
Canvas empowers you with three predefined APIs and one custom API to manage information, success, error, and custom toasts to meet your requirements.
Figure 24: Customized Notification on Desktop
Figure 25: Customized Notification on Mobile
For more information on this feature, refer the Canvas API for Managing the Toast Messages section in the Canvas Technology 18.1 - Expert Studio Dev Guide.