Use OAuth 2.0 with scopes such as contacts.readonly to securely access contact data from GHL. Your connection should request only the permissions needed for your workflow.
Configure OAuth or an API key in the Zapier app settings to securely connect Smartsheet with the GHL Contacts API, then test the connection.
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 contacts.write 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
Trigger: Retrieve a contact’s details when a row in Smartsheet needs up-to-date information. Use GET /contacts/:contactId to fetch data.
Actions: Create or update a Smartsheet row with contact fields; optionally fetch related tasks with GET /contacts/:contactId/tasks
GET /contacts/:contactId
contactId, email
Trigger: When a contact’s tasks change, retrieve them with GET /contacts/:contactId/tasks
Actions: Update Smartsheet task rows or create new tasks; manage completion with PUT /contacts/:contactId/tasks/:taskId/completed
GET /contacts/:contactId/tasks
contactId, taskId
Trigger: New notes for a contact via GET /contacts/:contactId/notes
Actions: Record notes in Smartsheet and optionally attach to a row; map note id and content
GET /contacts/:contactId/notes
id, contactId
Create powerful automated workflows without writing code
Keep data synchronized across Smartsheet and GHL Contacts API in real time
Scalable, repeatable processes for teammates
This glossary defines essential terms for endpoint usage, data mapping, authentication, triggers, and actions within the GHL Contacts API and Smartsheet integration via Zapier App Connector.
A defined URL path for accessing resources in the GHL API. Example: GET /contacts/:contactId
The method to verify identity between apps (OAuth 2.0, API keys).
An event that starts a Zapier workflow, such as a created or updated contact.
An operation performed by an app in response to a trigger (e.g., create a row in Smartsheet).
New leads in GHL can create a new row in Smartsheet with essential fields and status automatically.
When a contact’s status changes, update corresponding Smartsheet tasks to reflect progress in real time.
Store notes from GHL in a Smartsheet comments column to boost collaboration.
Create a new connection in Zapier App Connector and authorize with GHL using the Contacts API scope.
Select GET /contacts/:contactId and map to Smartsheet columns like Name, Email, Phone.
Run tests to verify data flow, then enable automation in production.
The GHL Contacts API integration uses a least-privilege OAuth scope (contacts.readonly) to pull contact data. You can request additional permissions if your workflow requires them. Always ensure you only access the data you need.\nIf you encounter permission prompts, verify that the connected account has the required access and that the Zapier app connection is granted the correct scope.
This setup is designed to be no-code via the Zapier App Connector. You configure the trigger and actions in the Zap editor and map fields from GHL Contacts to Smartsheet columns. Some more advanced scenarios might require simple field mappings or filters, but no custom code is needed.\nIf you need custom transformation, you can add built-in formatter steps in Zapier.
Commonly synced fields include contact name, email, phone, company, and notes. In Smartsheet, you can map these to corresponding columns such as Name, Email, Phone, Company, and a Notes column.
Yes. You can update existing Smartsheet rows by using the update actions that map to PUT /contacts/:contactId and related endpoints. Ensure you correctly identify the Smartsheet row by a primary key field.
Authentication uses OAuth 2.0 for GHL and the Zapier app, with tokens stored securely. Rotate tokens as recommended and keep credentials confidential.
If an endpoint returns an error, Zapier will surface the error message. Check HTTP status codes, review required scopes, and retry the step after confirming credentials. Implement error handling in your Zap where possible.
The endpoints list appears in the ENDPOINTLIST section of this guide. You can also view the API docs in your GHL developer portal for the latest details.
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