Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hello rhys M,
Welcome to Microsoft Community.
I am a Microsoft user just like you, I hope you are doing well.
Sorry for the inconvenience. However, you did not specify which Office license you are trying to activate/redeem.
TokenNotFound means Microsoft system was unable to find a corresponding product key.
Where did you purchase this product key from?
Looking forward to your response.
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Warm Regards