The Google Workspace integration allows you to:

• Automatically sync employees from your Google Workspace directory
• Sync organizational units and Google Groups for targeted signature assignments
• Deploy signatures directly to Gmail via API
• Set up assignment rules to automatically assign signatures based on org structure

Prerequisites: Google Workspace Super Admin access and 5-10 minutes for setup. No Google Cloud Console access needed.

What is Domain-Wide Delegation? This allows Lastline to access your Google Workspace data without requiring each user to authorize individually—the same approach used by Exclaimer, CodeTwo, and other major solutions. Lastline can only access data you explicitly authorize; we cannot read email content.

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Step 1: Open Setup Wizard

In Lastline, go to Integrations → Connect Google Workspace. The wizard displays your unique Client ID and OAuth scopes.

Step 2: Authorize in Google Admin Console

1. Open Google Workspace Admin Console
2. Navigate to: Security → Access and data control → API Controls → Manage Domain-Wide Delegation
3. Click Add new and enter the Client ID and OAuth scopes from Lastline's wizard
4. Click Authorize

Step 3: Connect and Configure

1. Enter your Admin Email (must be Super Admin) and Google Domain
2. Click Test Connection to verify setup
3. Choose sync options: Users, Groups, Organizational Units, Auto-deploy signatures
4. Set Sync Interval (minimum 15 minutes, default 60 minutes)
5. Click Connect Google Workspace

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Syncing Employees

Trigger syncs from Integrations → Google Workspace. For each employee, Lastline syncs: name, email, position, department, phone numbers, organizational unit path, and status.

Assignment Rules

Rules automatically assign signatures based on organizational structure, evaluated in priority order (lower number = higher priority).

Example setup:

Priority 1:   CEO Signature        → Individual: ceo@company.com
Priority 50:  Sales Team Signature → OU: /Sales
Priority 999: Default Signature    → All Users

Deploying Signatures

• Manual: Select employees in Employees section → Actions → Deploy Signature
• Automatic: Enable Auto-deploy signatures after sync in connection settings

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Connection Errors

Sync & Deployment Issues

Disconnecting

Go to Integrations → Google Workspace → Danger Zone → Disconnect. This stops syncing but keeps all employee data, rules, and deployed signatures. To fully revoke access, remove Lastline's Client ID from Google Admin Console's Domain-Wide Delegation.

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Best Practices

• Syncing: Start with full sync, then use incremental daily. Run full sync monthly to catch missed changes.
• Rules: Start with one "All Users" default rule, then add specific rules. Test priority with a few users before rollout.
• Security: Review Admin SDK logs periodically and audit domain-wide delegation authorizations regularly.

Limits