Hi Rohit,
I will suggest you use Azure Service Health for this kind of notificaitons - Azure Service Health notifies you about Azure service incidents and planned maintenance so you can take action to mitigate downtime. Configure customizable cloud alerts and use your personalized dashboard to analyze health issues, monitor the impact to your cloud resources, get guidance and support, and share details and updates.
Check this and configure it so you can acess all the alerts and planned changes maintenance.
https://azure.microsoft.com/en-gb/get-started/azure-portal/service-health/#overview
Hope this helps.
JS
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