For most Microsoft 365 and Office consumer subscriptions purchased online, a separate product key is not provided or needed. Installation and activation are done by signing in with the same Microsoft account used to make the purchase.
To use the subscription:
- Go to the Microsoft account, Services & subscriptions page.
- Sign in with the Microsoft account used on April 22, 2026 to buy the subscription.
- Locate the Microsoft 365/Office product in the list and select the option to install.
- When Office apps prompt for activation, sign in with the same Microsoft account instead of entering a product key.
If a Microsoft 365 app is prompting for a key, ensure the correct Microsoft account is used. A product key is only entered if a separate, unused key card was purchased and needs to be redeemed at www.office.com/setup.
If the purchase was through a special program (for example, Microsoft Workplace Discount Program) or a one-time Office product from Microsoft Store, the product key can sometimes be viewed in the Microsoft Store order history as described in the context, but activation is still tied to the account.
If no subscription appears under the Microsoft account used for purchase, contact the retailer or Microsoft support with proof of purchase.
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