How to get rid of activation errors with Office setup product key?

Posted by John Adward on July 24th, 2019

For a working professional who spends one-third fraction of his daily life by sitting in front of a computer screen, nothing is more peaceful but software packages that are designed to minimize the workload. MS Office productivity suites are dominating not only the software industry but also the hearts of millions of users for their capability of automating the office work. Download and install office setup via

However, like other software and services in the market from the house of Microsoft, office applications are prone to technical glitches that are no less than a headache, especially when you are new to the technology. If you are trying to download, install or activate Office setup by using the product key that you received after completing your purchase via, your progress may hit the roadblock of error messages.

One such error is “StackingTrialOnNonTrialNotSuspported”

In case, you can’t redeem your office setup product key due to this error, you won’t be able to get started with your Office product. You may receive the error message when you try to enter the product key to redeem your product

“Sorry we can’t set up your account at the moment”

Additionally, the message will contain this line:

Error Code: StackingTrialOnNonTrialNotSuspported

To get rid of the issue, you can contact Microsoft Customer Support number for technical assistance and check the status of your product key.

Office setup product key activation errors

Here is a list of other issues you may encounter when you enter your product key to redeem your office product via

  • The product is already in use
  • Sorry, we can’t find this product key in our database
  • This product key isn’t valid
  • Sorry, you’ve reached the limit of product key
  • Product key not activated
  • Product key isn’t meant for your region or country
  • We are sorry but office app has run into an error that is preventing it from working properly

Unlicensed product error

If office setup fails with the message “Unlicensed product” in the title bar of your office apps, and most of the features are disabled. To restore the features of office setup, you’ll need to fix the problem that’s causing product activation to fail:

  • Sign in to Office with the right account
  • Check for multiple copies of Office setup
  • Check your subscription status
  • Troubleshoot activation

You’re recommended not to share your account details, ID or password to anyone outsider on phone. Technical experts from the house of Microsoft will never ask you for such details. Always go through Microsoft official website or visit to get contact details of Microsoft customer service.

Like it? Share it!

John Adward

About the Author

John Adward
Joined: March 12th, 2019
Articles Posted: 12

More by this author