Blog - AI, Development, SaaS & Digital Marketing Guides

Syncing external customer data into HighLevel requires handling exact headers, location IDs, and custom field structures in API v2. Here is a complete code walkthrough to search, create, and update contacts cleanly.

Passing custom headers or auth tokens in GoHighLevel outbound webhooks requires the right action block setup. Here is how to configure authorization, custom metadata headers, and payload structures reliably.

Triggering a GoHighLevel workflow from external apps using inbound webhooks allows you to sync leads and process custom payloads instantly. This guide walks through setting up the trigger, mapping nested JSON fields, and troubleshooting common mapping bugs.

GoHighLevel API v2 changed how authentication and sub-account scoping work. Here is how to pass Bearer tokens and Location IDs across GET and POST requests without hitting 401 or 422 errors.

Sending raw contact data via HighLevel webhooks often creates bloated or messy payloads on your destination server. Here is how to structure custom values, custom fields, and custom JSON payloads cleanly in your workflows.

When GoHighLevel webhooks stop sending data, your downstream automations crash without warning. Here is how to trace execution logs, fix payload drops, and restore data flow.

Passing the wrong Location ID is the fastest way to trigger 401 and 422 errors in GoHighLevel API v2. Here is how to find client Location IDs manually or programmatically and use them in production code.

GoHighLevel API v2 uses strict OAuth 2.0 where access tokens expire in 24 hours and refresh tokens are single-use. This guide shows you how to build an automated, crash-proof token refresh system in Node.js.