Requests to the GHL Contacts API require a valid access token. Include the token in the Authorization header as Bearer
In SMSLink, generate an API key and use it to authorize requests to the GHL Contacts API. Add the key to your SMSLink connection configuration and pass it in the Authorization header as Bearer
Available endpoints (as examples): – GET /contacts/:contactId – GET /contacts/:contactId/tasks – GET /contacts/:contactId/tasks/:taskId – GET /contacts/:contactId/notes – GET /contacts/:contactId/notes/:id – GET /contacts/:contactId/appointments – GET /contacts/ – GET /contacts/business/:businessId – POST /contacts/ – PUT /contacts/:contactId – DELETE /contacts/:contactId – POST /contacts/:contactId/tasks – PUT /contacts/:contactId/tasks/:taskId – PUT /contacts/:contactId/tasks/:taskId/completed – DELETE /contacts/:contactId/tasks/:taskId – POST /contacts/:contactId/tags Tip: Use these to build end-to-end flows for contact management, task tracking, notes capture, and appointment scheduling between SMSLink and the GHL Contacts API.
Trigger: a new contact is added in SMSLink or an existing contact is updated, then sync to GHL via POST /contacts/ or PUT /contacts/:contactId.
Actions: map core fields (name, email, phone), apply tags, and optionally create related tasks or notes from the trigger.
Methods: POST /contacts/ to create or PUT /contacts/:contactId to update.
Key fields: email, phone, firstName, lastName, tags.
Trigger: a task is created or completed in GHL or SMSLink and should sync across systems.
Actions: create or update tasks with status and dueDate across both platforms; reflect completion.
Paths: POST /contacts/:contactId/tasks, PUT /contacts/:contactId/tasks/:taskId, PUT /contacts/:contactId/tasks/:taskId/completed, DELETE /contacts/:contactId/tasks/:taskId
Fields: contactId, taskId, status, dueDate.
Trigger: notes or appointments are added in one system and should appear in the other.
Actions: sync notes via GET /contacts/:contactId/notes and sync appointments via GET /contacts/:contactId/appointments; push updates to both sides.
Paths: GET /contacts/:contactId/notes, GET /contacts/:contactId/appointments
Fields: contactId, noteId, appointmentId.
No-code automation lets non-developers build powerful workflows between SMSLink and the GHL Contacts API.
Real-time data sync minimizes duplicates and keeps contact information accurate across systems.
A centralized workflow reduces manual data entry and accelerates onboarding for new customers.
Familiarize yourself with common elements (endpoints, authentication, payload formats) and processes (field mappings, error handling, rate limits) to design effective SMSLink automations with the GHL Contacts API.
Application Programming Interface: a defined set of endpoints and rules that allow SMSLink to interact with the GHL Contacts API.
Webhook: an event-driven notification delivered to your app when data changes occur in GHL or SMSLink.
OAuth 2.0 is a standard method for obtaining access tokens to authorize API requests securely.
Rate limits define how many API requests you can make per minute to prevent overload and ensure fair access.
Automatically create onboarding tasks, assign follow-up notes, and schedule introductory appointments when a new contact enters SMSLink.
Based on contact stage, auto-create reminder tasks in SMSLink and mirror statuses in GHL to keep teams aligned.
Attach support notes to contacts and trigger follow-ups when notes indicate escalation or resolution.
In SMSLink, generate an API key. In the GHL side, authorize the integration and copy the access token to use in Authorization headers for requests.
Map core contact fields (name, email, phone), as well as tasks, notes, and appointments, so data flows correctly between SMSLink and GHL.
Run end-to-end tests with a test contact, verify endpoints respond as expected, monitor webhooks, and once stable, switch to production.
You can build powerful integrations without writing code using the SMSLink to GHL Contacts API connection. The platform provides no-code triggers, actions, and mappings that let you automate workflows between the two systems. If you are comfortable with basic configuration, you can set up effective data flows in minutes. If you need more advanced behavior, you can still extend workflows with custom fields and conditional logic within SMSLink’s interface while leveraging the API for robust data operations.
The available endpoints cover reading and writing contacts, tasks, notes, and appointments. For example, GET /contacts/:contactId reads a contact, POST /contacts/ creates a contact, and PUT /contacts/:contactId updates a contact. There are also endpoints to manage tasks (POST /contacts/:contactId/tasks, PUT /contacts/:contactId/tasks/:taskId, etc.), notes, and appointments to help you build end-to-end automation.
Authenticate by passing a valid access token in the Authorization header as Bearer
Yes. You can sync tasks, notes, and appointments in both directions. Create or update tasks from SMSLink and reflect status changes in GHL, or vice versa. Ensure field mappings and event triggers are aligned so updates propagate correctly without duplication.
Rate limits vary by endpoint and plan. Plan for a reasonable request burst and implement exponential backoff on errors. Monitoring response headers and retry guidelines will help you maintain stable automation during peak activity.
API credentials are available in the dashboard of both SMSLink and GHL during your integration setup. Store tokens securely and reference them in your SMSLink connection configuration. If credentials are rotated, update your integration promptly to avoid downtime.
If you encounter errors, start with checking authentication tokens, endpoint permissions, and correct field mappings. Review API response messages for hints, verify that your trigger events are correctly configured, and consult the logs in SMSLink and GHL to identify where the data or structure diverges. Reach out to support if issues persist.
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