If your Office 365 license isn't activating, several factors could be causing the problem or help at 1-866-719-1004. Ensure that you're signed in with the correct Microsoft account that holds the subscription. Check that your subscription is active and hasn't expired. Additionally, verify that you have an internet connection, as activation requires online validation. If you're using a product key, make sure it's entered correctly. Restarting the device or Office application may also help. If these solutions don’t work, contact Microsoft support or help at 1-866-719-1004 for further assistance.
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