Enter your product key purchased from Microsoft Open

If you purchased Microsoft 365 for business from a Microsoft Open License Program, this article is for you. Volume licensing customers who purchased a product key can follow this topic to activate, renew, or add licenses to a subscription.

Need help immediately? Call Microsoft Support.

Need something else?

For help with Microsoft 365 Home, or Personal, see Using product keys with Office.

For help with Microsoft 365 Business Standard purchased from a retail store, see Enter your product key purchased from a retail store.

Activate, renew, or add licenses to a subscription purchased from Microsoft Open

If you bought Microsoft 365 from a Microsoft Open License Program, the system automatically enters the key for you when you activate, renew, or add licenses to a subscription.

  1. After you purchase a key from a Microsoft 365 partner, check your inbox for an email from Microsoft containing an activation link.

    Tip

    The email is sent to the person listed as the online administrator in the volume licensing agreement. If you're not sure who is designated as the online administrator, ask your Microsoft 365 partner.

  2. Follow the link in the email to sign in with your work or school account, accept the Open License Agreement, and renew the subscription. For a step-by-step walkthrough, download the PDF guide, Activate Online Services: Microsoft 365 Subscription, which covers how to activate a new subscription, renew an existing subscription, or add licenses to an existing subscription.

Note

Volume licensing customers can also choose to activate subscriptions in the Volume Licensing Service Center. To learn how, download the PDF guide, Activate Online Services in the Volume Licensing Service Center.

What's next?

If you're new to Microsoft 365 for business, learn how to set up Microsoft 365 for your organization.

Still having trouble with product keys?

Check out this list of common errors and solutions: Problems with your product key?

Partners, see Partners: use a product key to set up a customer subscription.

Volume licensing customers can learn more by visiting Microsoft Volume Licensing Service Center training and resources.

Or, if you want to talk to a person, call Microsoft Support.