TheTiny Toastr is the perfect notification plugin that you can use to show alerts and notifications in your Bubble app.
Features:

Toast Notifications: Display toast notifications in your web application.
Positioning: You can control the position where toast notifications appear on the screen, including top-right, top-left, bottom-right, bottom-left, and more.
Toast Types: Different types of toasts can be created, including success, info, warning, and error notifications.
Animation Effects: Add animation effects to toast notifications, such as sliding, fading, and more.
Progress Bars: Toastr supports progress bars in toast notifications, which can be used to indicate the time remaining before a notification disappears.
HTML Content: You can use HTML content within toast notifications for rich and interactive messages.
Global Configuration: Customize the default behavior of Toastr by configuring global options for all notifications.
Mobile-Friendly: Toastr is responsive and works well on mobile devices and small screens.  


Show dynamic alerts and notification with custom message and header in  the following:

Show success or error results from API calls
Show static notifications and alerts
Bind alert message and header to UI controls


and more...

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EDITOR MODE, DOCUMENTATION & DEMO APP
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DEMO
To view the demo app in with Toastr alerts, see here:
https://toastrdemoapp-38636.bubbleapps.io/version-test

Note: If you see a console error - Cannot read properties of undefined (reading 'filter') you can ignore it as it has no impact on functioning of the plugin

DOCUMENTATION
https://bottlenose-thumb-310.notion.site/Tiny-Toastr-Notification-Plugin-ef0866bad48445d89b4be870c5af8b17

EDITOR
To view the editor for this page, see here:
https://bubble.io/page?id=toastrdemoapp-38636&tab=tabs-1