Authenticate requests using OAuth 2.0. Obtain a client_id and client_secret, request the scopes defined for this integration (for example: contacts.readonly), and exchange authorization codes for access tokens to call the API securely.
Register your Lightspeed app with GHL, configure a redirect URI, and complete the OAuth flow to receive access and refresh tokens. Use the access token as a Bearer token in all API calls to the Contacts API.
– GET /contacts/:contactId — Retrieve a single contact – GET /contacts/:contactId/tasks — Retrieve tasks for a contact – GET /contacts/:contactId/tasks/:taskId — Retrieve a specific task – GET /contacts/:contactId/notes — Retrieve notes for a contact – GET /contacts/:contactId/notes/:id — Retrieve a specific note – GET /contacts/:contactId/appointments — Retrieve appointments for a contact – GET /contacts/ — List all contacts – GET /contacts/business/:businessId — List contacts for a business – POST /contacts/ — Create a new contact – PUT /contacts/:contactId — Update a contact – DELETE /contacts/:contactId — Delete a contact – POST /contacts/:contactId/tasks — Create a task for a contact – PUT /contacts/:contactId/tasks/:taskId — Update a task – PUT /contacts/:contactId/tasks/:taskId/completed — Mark a task as completed – DELETE /contacts/:contactId/tasks/:taskId — Delete a task – POST /contacts/:contactId/tags — Add tags to a contact
Trigger: A contact is created or updated in Lightspeed Retail POS X-Series.
Action: Create or update the corresponding contact in the GHL Contacts API using POST /contacts/ or PUT /contacts/:contactId.
Method/Path: POST /contacts/ or PUT /contacts/:contactId
Key fields: external_id (Lightspeed contact ID), email, first_name, last_name
Trigger: Tasks are created or updated in Lightspeed or GHL.
Action: Create or update tasks in both systems via POST /contacts/:contactId/tasks and PUT /contacts/:contactId/tasks/:taskId.
Method/Path: POST /contacts/:contactId/tasks and PUT /contacts/:contactId/tasks/:taskId
Key fields: contactId, taskId, status, due_date
Trigger: Notes are added or edited in either system.
Action: Sync notes to GHL via PUT /contacts/:contactId/notes.
Method/Path: PUT /contacts/:contactId/notes
Key fields: contactId, noteId, content, updated_at
Automate workflows with no code using Zapier App Connector to connect Lightspeed POS X-Series with the GHL Contacts API.
Real-time data sync reduces manual data entry and data drift across systems.
Centralized customer data lets you view notes, tasks, and appointments in one place.
This section defines core elements and the processes used to map data between Lightspeed and GHL, including contacts, tasks, notes, appointments, and business scope.
Application Programming Interface that enables software components to communicate and exchange data.
Authorization protocol that grants apps limited access to user data without sharing passwords, typically via access and refresh tokens.
A specific URL path in an API that performs an action or returns data.
The URL in your app where GHL redirects after an OAuth authorization request.
Automatically pull missing data from Lightspeed to enrich GHL contacts and keep records complete.
Create cross-system tasks and reminders so teams stay aligned without manual data entry.
Combine notes from Lightspeed and GHL into a single, searchable customer history.
Create a GHL app entry, set the redirect URI, and request the scopes needed (e.g., contacts.readonly).
Run the OAuth flow to obtain an access token and refresh token; verify access with a test API call.
Map fields between Lightspeed and GHL, configure error handling, and monitor activity.
The integration typically requires the contacts.readonly scope at a minimum. If you plan to create or update records, you may need broader scopes such as contacts.write. Always follow the principle of least privilege. After granting the scope, you can test using a sandbox or test account to ensure fields map correctly.
Authentication is via OAuth 2.0. You will register your APPNAME with GHL, obtain a client_id and client_secret, redirect the user to authorize, and exchange the authorization code for access and refresh tokens. Include the access token as a Bearer token in API requests, and refresh when needed.
Commonly used endpoints include reading a contact (GET /contacts/:contactId), listing contacts (GET /contacts/), and creating/updating contacts (POST /contacts/ and PUT /contacts/:contactId). For tasks and notes, use the corresponding endpoints under a given contact. Start with a simple read of a contact to validate your connection.
Yes. Use a test or sandbox environment if available. You can create test contacts and tasks to verify mappings and error handling without affecting live data. After validation, promote changes to your production environment.
Implement exponential backoff for retries and log API errors with details. Use idempotent operations where possible (e.g., upserts on contacts) and map common HTTP status codes to user-friendly messages. Regularly review rate limits and adjust polling or webhook usage accordingly.
Yes. A no-code option exists via the Zapier App Connector, which lets you connect Lightspeed POS X-Series and the GHL Contacts API with pre-built triggers and actions. This approach minimizes custom development while delivering automation.
Monitor sync activity via the connection dashboard, logs, and any implemented webhooks. Set up alerts for failures, track last sync times, and review error messages to quickly diagnose issues.
Due to high volume, we will be upgrading our server soon!
Complete Operations Catalog - 126 Actions & Triggers
