Hi A Matt Francis,
Thank for reporting the issue in the community. About the Microsoft Team feature, I’d like to clarify that it’s available to Office 365 commercial customers with one of the following plans: Business Essentials, Business Premium, and Enterprise E1,
E3 and E5. Microsoft Teams will also be available to customers who purchased E4 prior to its retirement. It’s not available to Office 365 Business, Office 365 Education and Government customers. For those who have Office 365 Small Business plans, the feature
is not supported either.
More information on the FAQ here:
https://blogs.office.com/2016/11/02/introducing-microsoft-teams-the-chat-based-workspace-in-office-365/
In addition, for the full Microsoft Teams experience, every user should be enabled for Exchange Online and SharePoint Online. Please confirm if you have already assigned
licenses to this user when trying to access the Microsoft Team.
If you meet all the requirements but still encounter the issue, please post here and share with us your tenant information in your Private Message. We will further investigate the issue.
I have sent you a private message to collect it. Please click this link to access the message:
https://answers.microsoft.com/en-us/privatemessages/list
Regards,
Monique