Maxim Mironjuk
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March 30, 2026
Magento already ships a complete notification system through Magento_AdminNotification, visible via the bell icon in the top right corner of the backend: inbox notifications with severity levels and an unread counter, plus system messages shown as a red or yellow banner. Custom modules can tap into this system deliberately to report certificate expirations, failed API synchronizations or low stock levels directly inside the admin panel instead of forcing developers to dig through log files. This article shows how to build a custom Admin Notifications setup based on InboxInterface, MessageInterface, cron jobs and ACL rules, including complete code examples for Magento 2.4.8.