GoHighLevel Custom Webhook Guide

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How to Use the Custom Webhook Action in GoHighLevel Workflows

ClickUp users who are moving into advanced marketing automation often need deeper integrations, and the custom webhook action in GoHighLevel makes this possible. This guide walks you step by step through configuring a custom webhook inside a workflow so you can send contact and event data to external tools and APIs reliably.

The custom webhook action lets your GoHighLevel account communicate with third-party systems such as CRMs, reporting tools, or custom applications. By sending structured HTTP requests, you can automate complex, cross-platform processes from a single workflow.

What the GoHighLevel Custom Webhook Action Does

The custom webhook action in GoHighLevel is a workflow step that sends data from a contact, opportunity, or other workflow context to an external URL. It is commonly used for:

  • Sending lead data to external CRMs or databases
  • Triggering events in automation platforms or custom apps
  • Syncing form submissions with reporting dashboards
  • Calling custom APIs for advanced logic or fulfillment

When the workflow reaches the webhook step, GoHighLevel sends an HTTP request (GET, POST, PUT, or DELETE) to your specified endpoint and can include headers, query parameters, and a custom body.

Prerequisites for Using GoHighLevel Webhooks

Before setting up the custom webhook action in GoHighLevel, ensure the following:

  • You have admin or sufficient permissions to edit workflows.
  • You have a target endpoint URL from the app or API you want to connect.
  • You understand what data format (JSON, form data, etc.) your endpoint expects.
  • You have any required API keys or authorization tokens.

Having these details ready will make configuration much faster and help you avoid connection errors when you test your workflow.

How to Add a Custom Webhook Action in a GoHighLevel Workflow

Follow these steps to insert and configure the webhook in your GoHighLevel workflow:

Step 1: Open Your GoHighLevel Workflow

  1. Log in to your GoHighLevel account.
  2. Navigate to Automation and select Workflows.
  3. Open an existing workflow or create a new one where you want to send data to an external service.

Step 2: Insert the Custom Webhook Action

  1. Inside the workflow builder, click the plus (+) icon to add a new action at the desired point in your logic.
  2. From the list of available actions, choose Custom Webhook.
  3. The configuration panel for the webhook action will appear on the right-hand side.

Configuring the GoHighLevel Custom Webhook Settings

The custom webhook action supports several configuration options. Each one influences how GoHighLevel communicates with your target endpoint.

1. Select the HTTP Method

Choose the appropriate HTTP method for your endpoint:

  • GET – Retrieve data or trigger simple actions where parameters are typically in the URL.
  • POST – Create or send new data (commonly used for webhooks and forms).
  • PUT – Update an existing record on the receiving system.
  • DELETE – Remove data on the external system.

Most webhook integrations with GoHighLevel use POST with a JSON body, but you should confirm what your external app requires.

2. Enter the Webhook URL

In the URL field, paste the endpoint provided by your external service or custom API. This is where GoHighLevel will send the HTTP request.

  • Ensure the URL is correct and uses https:// if required.
  • Verify that any required paths or query strings are included.

If your API uses dynamic values in the URL (such as IDs), you can often include merge fields from the workflow context.

3. Add Query Parameters (Optional)

Query parameters allow you to send extra data in the URL. In the custom webhook action, you can:

  • Add a parameter name and value pair.
  • Use merge fields from GoHighLevel, such as contact information, to personalize each request.
  • Repeat this process for multiple parameters.

These parameters are appended to the URL when the webhook is executed by GoHighLevel.

4. Configure HTTP Headers

Some APIs require headers to authenticate or specify the content type. In the webhook configuration:

  • Add a header key such as Authorization or Content-Type.
  • Set the header value, for example, Bearer YOUR_API_TOKEN or application/json.
  • Include any custom headers your destination system expects.

Headers are critical when working with secured APIs and should match the documentation of the external service you are connecting to from GoHighLevel.

5. Define the Request Body

The request body is where you send structured data, usually as JSON or form-encoded fields. In the GoHighLevel custom webhook action:

  • Choose the correct body type according to your target endpoint’s requirements.
  • Enter key–value pairs or a structured JSON object.
  • Insert GoHighLevel merge fields (like contact name, email, phone, or custom fields) to send dynamic data.

Each time the workflow runs, GoHighLevel replaces these merge fields with the current record’s data before sending the request.

Testing and Troubleshooting GoHighLevel Webhooks

After configuration, you should test the webhook to confirm the external service is receiving the correct data.

Test the Webhook Action

  1. Use a test contact or create a dummy record that will enter your workflow.
  2. Trigger the workflow so it reaches the custom webhook step.
  3. Check logs or history in the receiving application to see if the request arrived.

Some API tools or services include their own webhook logs, which can help you verify that GoHighLevel is sending the correct payload, headers, and parameters.

Common Issues and Fixes

  • Issue: No data received
    Check that the workflow actually executed the webhook step and that the URL is correct.
  • Issue: Authentication errors
    Verify your API key or token in the headers and confirm the authorization format required by the external API.
  • Issue: Invalid JSON or body
    Ensure your JSON structure is valid and that all merge fields used by GoHighLevel are supported and properly formatted.

If needed, review the documentation of both the target service and the custom webhook feature inside GoHighLevel to align your settings.

Best Practices for GoHighLevel Custom Webhooks

  • Use test environments whenever possible so you can validate your webhook configuration without affecting real data.
  • Limit data sent to only what is required by the external system to keep requests efficient and secure.
  • Document your configuration so your team knows what each webhook in GoHighLevel does and which systems it touches.
  • Secure your endpoints with authentication, IP restrictions, or secret tokens if you are managing your own API.

Following these practices will make your integrations more reliable and easier to maintain as your GoHighLevel automations grow.

Additional Resources for GoHighLevel Webhooks

To deepen your understanding or troubleshoot advanced setups, you can consult both official and third-party resources:

With the custom webhook action configured correctly, your GoHighLevel workflows can orchestrate data across all of your tools, enabling more advanced automation, better reporting, and a unified customer journey.

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