Loggin Teams

[GeorgP375]

Someone has already set up teams for your organization
Ask your administrator to set up teams for you, or set up another organization in teams with a different e-mail address.

[#2]

Use the steps outlined here to perform a domain takeover: https://docs.microsoft.com/en-us/azure/active-directory/enterprise-users/domains-admin-takeover

This is a very common issue, please use the search functionality if you want additional details.

[#3]

@GeorgP375   In case you want another resource but Vasil is right - this topic shows up a lot in this forum so you could do a search for past posts with the same issue.

Someone has already set up Teams for your organization error in Microsoft Teams - Microsoft Teams | ...