When you start creating a Circuit Zap, you will be asked to connect your Circuit account.
You’ll now be asked to log into your Circuit account (unless you are already logged in).
Finally, you will be asked to give Zapier permission to access your account. Click "The Application Circuit Zapier Integration is asking for permission and wold like to have full access to your Circuit account” to continue.
If all steps were successful your Circuit account will now be successfully connected.