Set up secure access by obtaining OAuth credentials or API keys for the GHL Contacts API. Specify the scope contacts.readonly (and write as needed) to control what your app can do.
In the Zapier App Connector, authenticate PostcardMania so the connector can read and write data to the GHL Contacts API on your behalf. Keep credentials safe and rotate as recommended.
GET /contacts/:contactId — Retrieve a single contact GET /contacts/:contactId/tasks — List tasks for a contact GET /contacts/:contactId/tasks/:taskId — Get a specific task GET /contacts/:contactId/notes — List notes for a contact GET /contacts/:contactId/notes/:id — Get a specific note GET /contacts/:contactId/appointments — List appointments for a contact GET /contacts/ — List contacts GET /contacts/business/:businessId — List contacts for a business API Endpoint9: contacts.write API Endpoint10: POST /contacts/ API Endpoint11: PUT /contacts/:contactId API Endpoint12: DELETE /contacts/:contactId API Endpoint13: POST /contacts/:contactId/tasks API Endpoint14: PUT /contacts/:contactId/tasks/:taskId API Endpoint15: PUT /contacts/:contactId/tasks/:taskId/completed API Endpoint16: DELETE /contacts/:contactId/tasks/:taskId API Endpoint17: POST /contacts/:contactId/tags
Trigger: a contact is created or updated in GHL
Action: create or update the corresponding contact in PostcardMania; optionally mirror notes and tasks
GET /contacts/:contactId
contactId, name, email, phone
Trigger: a new or updated task in GHL
Action: create or update a related task in PostcardMania; mark completed when appropriate
GET /contacts/:contactId/tasks
contactId, taskId, taskName, dueDate
Trigger: a note is created or updated in GHL
Action: create or update a note in PostcardMania linked to the corresponding contact
GET /contacts/:contactId/notes
contactId, noteId, noteContent
Code-free automation to sync core data between PostcardMania and GHL
Real-time updates across platforms without manual data entry
A unified view of contacts, tasks, and notes from both systems
A concise glossary of terms used in this guide: API, endpoints, triggers, actions, and data fields.
A set of rules and protocols that lets one app request data from another. RESTful APIs use standard HTTP methods like GET, POST, PUT, and DELETE.
An authorization framework that lets apps securely access user data without sharing passwords. It’s commonly used to grant Zapier or connectors access to services.
A specific URL and HTTP method combination that performs an action in an API, such as retrieving a contact or updating a task.
A method for real-time data delivery where one app sends an HTTP request to another app’s endpoint when an event occurs.
Pull contact details from GHL and enrich PostcardMania profiles for smarter mail campaigns.
Create tasks in PostcardMania when GHL tasks are created to trigger timely mail workflows.
Attach notes from GHL to PostcardMania contacts to segment audiences for personalized postcards.
Register the app and obtain credentials to authorize API calls between GHL and PostcardMania.
Define field mappings for contacts, tasks, and notes between both systems.
Run tests, verify data flow, and deploy with monitoring and retries.
To authenticate, obtain OAuth credentials or API keys for both GHL and PostcardMania and configure them in the Zapier App Connector. Follow the on-screen prompts to grant the necessary scopes (e.g., contacts.readonly). Store credentials securely, use test mode first, and verify the connection with a sample contact. If errors occur, recheck client IDs, secrets, and scopes, then re-test.
The endpoints include GET /contacts/:contactId, GET /contacts/:contactId/tasks, GET /contacts/:contactId/notes, and related write endpoints like POST /contacts/ and PUT /contacts/:contactId. This enables both read and write workflows depending on your app’s permissions. For read-only apps, stay within GET endpoints; for write-enabled apps, ensure proper authentication and permissions, and use pagination where supported.
Yes. You can create and update tasks via the integration by using POST /contacts/:contactId/tasks and PUT /contacts/:contactId/tasks/:taskId. This supports triggering follow-up mail campaigns from PostcardMania when GHL tasks change. Maintain id mappings so tasks stay linked to the correct contact across both systems.
Real-time updates are supported via webhooks or scheduled polling in Zapier; latency depends on your polling settings and endpoint responsiveness. For instant data pushes, enable Webhooks where supported; otherwise rely on periodic checks to keep data in sync with monitored events.
Field mapping is configured in the Zapier connector. Map core fields (name, email, phone) and extended fields (notes, tags, custom fields) between GHL and PostcardMania. Regularly review mappings to incorporate new fields from either side. Document mappings to avoid data drift and ensure campaigns target accurate segments.
Data transfers occur over HTTPS with OAuth tokens and API keys. Access scopes limit what each app can do, and encrypted storage protects credentials. Audit logs and retry logic enhance reliability and security during sync operations.
Logs are accessible in the Zapier task history and connector logs; enable verbose logging if troubleshooting. Review payloads and timestamps to diagnose issues. If problems persist, gather error IDs, timestamps, and sample payloads when reaching out to support.
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Complete Operations Catalog - 126 Actions & Triggers
