Outlook
A family of Microsoft email and calendar products.
3,085 questions
This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
I am working on an application that may have millions of users in the future. Currently, I have implemented an Azure event hub and Microsoft Graph API to subscribe to the Outlook inbox change event, and the script successfully captures that change event for my test Outlook account. However, the current subscription is focused on a single user account. How can I create subscriptions for multiple email accounts, and what are the best practices and options available for doing this? Thank you in advance.