Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hello,
If you purchased the subscription directly through the Microsoft Store, it should already be digitally linked to your Microsoft account. You do not need to activate it separately.
- To confirm that your subscription is active, visit the Services & Subscriptions page here: https://account.microsoft.com/services
- Sign in with the Microsoft account you used to make the purchase.
Click "Install" to download the Office applications to your device. After installation, sign in with the same Microsoft account to activate the Office apps.
Reference:
Download, install, or reinstall Microsoft 365 or Office 2024 on a PC or Mac