Apart from the error message above, is there any error code? Such as "0xD000001c"?
If yes, please share with me for further analysis.
I suggest you try the following steps to have a check.
1 Did you redeem your product key for Office for Mac, if not please follow these steps.
- Go to https://www.office.com/setup
- Sign in with your Microsoft account, or create one if you don't have one (you can create one with any existing email address you already have). Be sure to remember this account so that you can install or reinstall Office later, without a product key.
- Enter your Office product key, without hyphens.
- Follow the prompts to finish the redemption process.
2
When theres is errors occured with steps above, you can use the Virtual support agent (English only) to check this key.
If the product key isn’t working, you may need to contact your seller.
Besides, please refer to article "Get help with product key errors on Office.com/setup".
3
Where did you download the Office 2019? Is the link you received points to www.office.com?
If the page loads, your internet connection is working. Please check your credentials as following.
- Open Spotlight by selecting the magnifying glass at the top right of your desktop.
- Search for and open Keychain.
- Type in Office and then check and delete the data license file if there is.
- Download and run this script.
- Try to activate Office for Mac again.
4
Add and switch a new account to check this issue.
(Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.)
Any issues please let me know.
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