Once a user has received the email to join a team in MS Teams, if it is a gmail, yahoo or another NON-Microsoft account, they will be required to create an account prior to being able to log in. If you have a Microsoft account such as outlook.com, hotmail or another institution's account, you will not need to follow the steps below:
If at any point in this process you receive an error message to contact your administrator, please wait up to 2 hours before retrying as it can take some time for all systems to synchronize.
Step 1:

Step 2:

Step 3:

Step 4:

Step 5:

Step 6:
\
Step 7:
