1. Prerequisites
To proceed you will need:
Admin permissions on TAC
Super admin permissions on Google Workspace
Access to the Google Admin console: https://admin.google.com/
2. Accessing the integration on TAC
Log in with your TAC admin account
From the left-hand menu, go to the Integrations section
Click "Connect to Google"
You will see a list of available synchronisations (User Sync, Email Signature, Calendar, etc.). Each synchronisation requires specific permissions (scopes) that you will need to authorise in Google Workspace.
3. Authentication (OTP)
The first time you open the Google integration:
Enter an administrator email address
Enter the OTP code you will receive by email
This confirms that the TAC user is the same admin as the Google Workspace admin.
4. Authorisation: granting permissions to the TAC app
To authorise TAC to read users, groups, email signatures, etc., you need to add a domain-wide delegation:
Copy the Client ID shown on the TAC integration page
Click "Add new"
Enter:
Client ID
The scopes required by the synchronisations you want to activate
Click "Authorize"
Configuration example:
5. Full list of required scopes
User Sync
Email Signature
Send Email
Import Emails
Google Calendar
6. Activation
Once the required scopes have been authorised:
Go back to TAC → Integrations → Google Workspace
Enable Email Signature or any other desired synchronisations
TAC will automatically apply HTML signatures to all users in the domain.
For any questions, contact us at 📩 support@touchandcontact.com