How to Join Google Chat
If you already use Gmail
Your Gmail address is a Google Account.
To join Google Chat when invited:
Open the invitation you receive.
Click “Open in Chat” or the link provided.
Sign in with your Gmail address.
You’ll be added to the chat or space automatically.
If you don’t use Gmail
You can still join Google Chat you just need a Google Account linked to your current email.
Follow these steps:
Go to: accounts.google.com/signup
Select “Use my current email address instead.”
Enter your existing email (Outlook, company email, etc.).
Create a password and complete the short setup.
Verify your email (Google will send you a code).
Once done, your email is now a Google Account.
When you receive the Chat invitation, click the link and sign in with this newly-created Google Account.