Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
To sign up for Microsoft 365 for business and create the needed Microsoft account and Outlook.com alias, use these steps and principles from the account documentation:
- A “Microsoft account” is just an identity (email + credentials) used to sign in to Microsoft services. It can be:
- An existing email address (for example, a company or personal address), or
- A new Outlook.com address created during sign-up.
- A new Microsoft account can be created in two main ways:
- Go to the Microsoft account sign-up page (for example via Create free account or Create an account) and:
- Enter an existing email address to “bring your own email” as the Microsoft account sign-in.
- Or choose to create a new Outlook.com address (for example,
******@outlook.com) and use that as the Microsoft account sign-in.
- If there is no email address yet or a new one is preferred, go to Outlook.com and select Create free account to get a new
@outlook.comaddress. That address automatically becomes a Microsoft account.
- Go to the Microsoft account sign-up page (for example via Create free account or Create an account) and:
- When the business/tenant enrollment asks for:
- Company email address: this is typically the work email used for contact and organization details.
- Microsoft account email: this is the identity used to sign in as the administrator. It can be:
- The same address (if allowed by the flow), or
- A separate Microsoft account (for example, a newly created
@outlook.comaddress).
- To create a new
@outlook.comalias that can be used as the administrator’s Microsoft account profile:- Go to Outlook.com and select Create free account.
- Choose the desired
@outlook.comname (for example,******@outlook.com). - Complete the sign-up steps (name, region, birthdate, captcha, and email verification if requested).
- This new
@outlook.comaddress is now a Microsoft account and can be used as the administrator sign-in for Microsoft services.
- Important limitations:
- Email addresses that have already been used as Microsoft accounts cannot be reused for a different Microsoft account, even if the old account was closed.
- Existing Outlook.com addresses are already Microsoft accounts and cannot be “moved” or merged into another Microsoft account.
In practice, for an administrator profile, create or choose one Microsoft account (often a dedicated @outlook.com address) and then use that as the sign-in identity when the Microsoft 365 business setup asks for the administrator account.
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