With Invite Link
First create a team by going to Tandem.chat and clicking on "Join with slack". You an also use google.
Then, click on "Invite teammates"
Copy the invite link and send it to your teammates
Once they click that link they can join with either slack or google and they will join your team.
With domain signup
Available if the team creator allowed people with the same email domain (eg. [email protected]) to automatically join.
Tell your teammates to go to the Tandem.chat and click o Join with slack. They can also use Google
They have to log in with a Slack or Google account with the same email domain as the team creator (eg. [email protected])
They will join your team