Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi,
The invoice can be found on this page:
https://account.microsoft.com/billing/orders?lang=en-US#main-content-landing-react
Look for the Tax Invoice button:
If you redeem the product key code on the Setup Office Redeem page, no invoice is provided since the invoice is already generated for the key code.
I hope this information helps. If you have any more questions, don't hesitate to reach out.