If you've tried the earlier troubleshooting steps and Office is still unlicensed, you can troubleshoot activation failures yourself. I do list a my troubleshooting steps in the original post, so check those out -I’m hoping someone can see the cause sticking out of flush DNS and re-sync Outlook all these symptoms. In a nutshell, our Office 365 products are not activating.

Check connectivity

All of my users are getting notices at the top of their office software saying (unlicensed product). By following these steps, you should be able to get your Office software activated and back to work without any issues. The tool can fix issues like invalid keys, expired subscriptions, or even corrupted installation files. If the key doesn’t match or you’re unsure, consult your purchase receipt or Microsoft account to find the correct product key.

Update Office

Activation ensures compliance with Microsoft’s licensing terms and unlocks all features of the Office suite. If the product key seems correct, but you’re still encountering activation recreate Outlook profile step by step issues, use the Microsoft Support and Recovery Assistant (SaRA) tool. This tool can automatically detect and fix activation errors for Microsoft Office.

Still need help? Contact Support

A vast community of Microsoft Office365 users that are working together to support the product and others. A stable internet connection is required for Office activation, especially for Office 365 and Office 2016. If you’re having trouble activating Office, make sure you’re connected to the internet. I’m guessing there is some protocol or cipher suite issue. I’ve gone that route though, and have (as best as I can tell) corrected the protocols and cipher suites to be correct.

This article describes the error codes and corresponding descriptions of Microsoft Office activation process issues that can be repaired by using the Office Repair tool. If you use your device both at home and at work, try turning off the proxy settings in Microsoft Edge or Internet Explorer before you install Microsoft 365. If you're using a different browser, check their help to find out how to turn off proxy settings. For information about how to turn off your antivirus software, check your antivirus manufacturer's website. Don't forget to reinstall it after Office is finished installing and if you turned it off, be sure to turn it on again.

• Sometimes, activation issues can be caused by corrupted Office files or an incomplete installation.
• Did you download Office from the portal while logged in as the user?
• You may not realize you have more than one copy installed.
• However, activation errors can sometimes prevent users from accessing its full functionality.
• Fortunately, many common Office activation problems can be fixed with a few simple troubleshooting steps.
• Find solutions to common problems or get help from a support agent.
• Was very odd the only thing broken was the licensing.
• I tested this with PCs that were never on our domain, and they worked just fine -as far as the accounts and licenses go.

How to Contact Support:

In this guide, we’ll walk you through how to troubleshoot Microsoft Office activation errors and get your software up and running again. If none of the above methods work, reinstalling Microsoft Office can often resolve stubborn activation errors. If you want to send me login details of a test account on your domain/tenancy, I’ll try and activate office with it here on a test machine. What is the exact error the user receives when attempting to authenticate or activate the license? I would also check Azure to make sure Federation is enabled. If your Office product key is already in use on another device, you might need to deactivate it on that device before you can activate it on your current one.



If all else fails, Microsoft Support is always available to assist you further. Before diving into the common activation errors, it is important to understand how Microsoft Office activation works. Microsoft requires users to activate their Office products to verify that they are using genuine software.



I tested this with PCs that were never on our domain, and they worked just fine -as far as the accounts and licenses go. This is the only evidence I can see of a network issue. All PCs are working properly for all other functions that I can tell, and we are not getting notices from any other software indicating an issue with connectivity.



If Office asks you to sign in, enter the account you used to buy Office. You'll see "We couldn't find any Office products" if you use the wrong address. To restore all features Fix Outlook and Office365 Sync Issues of Office, you'll need to fix the problem that's causing activation to fail. The activations work when this is tried on a PC that is not on our domain.