To change a user's email address in Microsoft 365, you must be a user administrator. Here are the steps to follow:
- In the admin center, go to the Users > Active users page.
- Select the user's name, and then on the Account tab, select Manage username and email.
- In the first box, type the first part of the new email address. If you have added your own domain to Microsoft 365, choose the domain for the new email alias from the drop-down list.
- Select Done.
Regarding canceling your subscription, you can typically do this through the Microsoft 365 admin center or the subscription management page, depending on how you subscribed. Look for options related to billing or subscriptions in your account settings.
If you need further assistance, please refer to the Microsoft support documentation or contact their support team directly for help with subscription management.
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