If you are not the admin on your account
You can add a teammate by contacting the admin that added you to Yac.
If you are an admin of your team
You can go to app.yacchat.com and follow the steps below:
Enter your email address and click Manage Account to sign into your Admin Dashboard.
Check your email and enter the confirmation code to verify it was you, then click Continue.
In the My Team tab, click Invite via Email.
Type in the email address of your colleague(s) and send. Your colleague(s) will get an email with instructions outlining how to get into the app.
Signing into Admin
Inviting a Teammate