Microsoft Graph api webhook for emails

Question

in microsoft subscription for webhook i'm getting multiple notification for one mail

i have subscription for me/mailFolders('Inbox')/messages/ and i have subscription for me/mailFolders('sentItems')/messages/

please let us know

Answer 1

When using Microsoft Graph API webhooks for email subscriptions, it is possible to receive multiple notifications for a single email event. This can occur due to the way notifications are structured and delivered. Each subscription you create for different folders (like me/mailFolders('Inbox')/messages/ and me/mailFolders('sentItems')/messages/) can trigger notifications independently based on changes in those specific folders.

If an email is moved or copied between folders, or if it is modified in any way, you may receive notifications for each relevant subscription. Additionally, if multiple changes occur in quick succession, you might receive several notifications in a single batch.

To manage this, you can implement logic in your application to handle duplicate notifications by tracking the unique identifiers of the emails or changes you have already processed. This will help ensure that your application does not react to the same change multiple times.

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References:

• Microsoft Graph API change notifications
• Keep messages and mail folders up to date in apps