Set up Microsoft 365 Business Basic

Watch: Set up Microsoft 365 Business Basic

If you found this video helpful, check out the complete training series for small businesses and those new to Microsoft 365.

Add your domain to personalize sign-in

When you purchase Microsoft 365 Business Basic, you have the option of using a domain you own, or buying one during the sign-up.

  1. Go to the admin center at
  1. Go to the admin center at
  1. Choose Go to setup to start the wizard.

  2. In the Add domain step, enter the domain name you want to use (like


    If you purchased a domain during the sign-up, you will not see Add a domain step here. Go to Add users instead.

  3. Follow the steps in the wizard to Create DNS records at any DNS hosting provider for Office 365 that verifies you own the domain. If you know your domain host, see also Add a domain to Microsoft 365.

    If your hosting provider is GoDaddy or another host enabled with domain connect, the process is easy and you'll be automatically asked to sign in and let Microsoft authenticate on your behalf.

    On GoDaddy Confirm Access page, select Authorize.

Add users and assign licenses

You can add users in the wizard, but you can also add users later in the admin center. Additionally, if you have a local domain controller, you can add users with Azure AD Connect.

Add users in the wizard

Any users you add in the wizard get automatically assigned a Microsoft 365 Business Basic license.

  1. If your Microsoft 365 Business Basic subscription has existing users (for example, if you used Azure AD Connect), you get an option to assign licenses to them now. Go ahead and add licenses to them as well.

  2. After you've added the users, you'll also get an option to share credentials with the new users you added. You can choose to print them out, email them, or download them.

Connect your domain


If you chose to use the .onmicrosoft domain, or used Azure AD Connect to set up users, you will not see this step.

To set up services, you have to update some records at your DNS host or domain registrar.

  1. The setup wizard typically detects your registrar and gives you a link to step-by-step instructions for updating your NS records at the registrar website. If it doesn't, Change nameservers to set up Office 365 with any domain registrar.

    • If you have existing DNS records, for example an existing web site, but your DNS host is enabled for domain connect, choose Add records for me. On the Choose your online services page, accept all the defaults, and choose Next, and choose Authorize on your DNS host's page.
    • If you have existing DNS records with other DNS hosts (not enabled for domain connect), you'll want to manage your own DNS records to make sure the existing services stay connected. See domain basics for more info.
  2. Follow the steps in the wizard and email and other services will be set up for you.

    When the signup process is complete, you'll be directed to the admin center, where you can add users, and assign licenses. After you complete the initial setup, you can use the Setup page in the admin center to continue setting up and configuring the services that come with your subscriptions.

    For more information about the setup wizard and the admin center Setup page, see Difference between the setup wizard and the Setup page.