GoHighLevel Make.com Integration: Automate Contacts and Deals

GoHighLevel CRM automation with Make.com works by connecting your external trigger sources such as class booking software, scheduling tools, call platforms, and intake forms to GoHighLevel's REST API through a Make.com scenario that handles contact upsert, stage updates, and field mapping on each event. A fully wired setup keeps GoHighLevel current across multiple input systems without anyone touching the CRM between calls.

If your team is manually copying contact data or updating pipeline stages after every customer interaction, this guide covers how the integration is built, what the field mapping looks like, and where most implementations break under real workload.

The problem it solves

GoHighLevel is a capable CRM, but it only knows what it is told. If your customer bookings happen in a class management platform, your appointments come from a scheduling tool, and your calls are logged in a separate system, GoHighLevel ends up as the least accurate record of what is actually happening with customers.

The typical patch is to have someone manually update contacts: check the booking system, find the matching contact in GHL, update the stage, add a note, repeat. For a service business with 50 to 200 active customers this takes two to four hours a week. It is not done consistently. Data is usually several days behind. Sales managers run off memory because the CRM is not reliable enough to trust.

The automation replaces that manual sync loop with a triggered Make.com scenario that fires on each meaningful customer event and writes the structured outcome directly to GoHighLevel.

How the system works

The architecture has four layers:

1. Trigger source: the external system where the customer action happens. This varies: it could be a class booking platform (iClass Pro, Mindbody, ABC Fitness), a scheduling tool (Calendly, Cal.com, Acuity), a form submission, a call system, or any platform that can fire a webhook or has an API.

2. Make.com scenario: the processing layer. It receives the event, extracts the relevant fields, resolves whether the contact already exists in GoHighLevel, and decides what to write where. One scenario per trigger source is the maintainable approach.

3. GoHighLevel API: the destination. GoHighLevel's v1 REST API covers contacts, opportunities (deals), pipelines, notes, tasks, and conversations. Most CRM sync work touches contacts and opportunities.

4. Logging: a Google Sheet or Airtable base that records each sync event: timestamp, contact identifier, action taken (created, updated, skipped), and any errors. Without a log you cannot diagnose silent failures.

Step-by-step: how to build it

Step 1: Get your GoHighLevel API credentials

GoHighLevel has two API levels: agency-level and sub-account-level.

If you are automating a single location or one client's CRM, use a sub-account API key. Go to the sub-account Settings, then Integrations, and generate an API key. This key scopes all requests to that sub-account.

If you manage multiple sub-accounts (the typical agency setup), you need an agency-level API key and must pass the locationId parameter on every request to target the correct sub-account. The base URL for v1 requests is https://rest.gohighlevel.com/v1/.

Store the key in Make.com's connection manager, not hardcoded in the scenario.

Step 2: Build the trigger in Make.com

Make.com has a native GoHighLevel module, but for most inbound sync work you will start with the trigger source, not GoHighLevel. The typical patterns:

• Webhook trigger: if your source system can send a webhook on each event (most modern SaaS tools can), use Make.com's custom webhook module as the entry point. Paste the generated webhook URL into your source system's webhook settings.
• Scheduled polling: if the source has no webhooks but does have an API, use a Make.com scheduled trigger (every 15 or 30 minutes) that fetches recent records and processes each new one.
• Native Make.com modules: for common platforms like Google Forms, Calendly, or Typeform, use the corresponding native module as the trigger.

For a class booking integration, for example, the trigger fires whenever a new enrollment is created or a member's status changes in the booking platform.

Step 3: Search for the contact in GoHighLevel

Before creating or updating, always check whether the contact exists. Duplicate contacts are the most common failure mode in CRM automation.

Use the GoHighLevel Search Contacts endpoint with the contact's email or phone number as the lookup key:

GET https://rest.gohighlevel.com/v1/contacts/?email={{email}}

The response includes a contacts array. If the array is empty, proceed to create. If it returns one or more matches, use the first match's id for all subsequent updates.

In Make.com, route the scenario with an If/Else or Router module based on whether the search returned a result. One branch handles new contacts, the other handles existing contact updates.

Step 4: Map the fields

GoHighLevel contacts have standard fields (firstName, lastName, email, phone, address, tags) and custom fields. Before building the mapping, spend 30 minutes documenting which GoHighLevel fields you need to populate and where each value comes from in the source system.

A working field map for a class booking sync looks roughly like this:

Custom fields in GoHighLevel have a field key (not the display name). You find the key in Settings under Custom Fields. It looks like contact.membership_type. Use the key, not the label, in your API calls.

Step 5: Build the opportunity (pipeline) update

Contacts tell you who someone is. Opportunities tell you where they are in your sales or retention process. If you want GoHighLevel's pipeline view to reflect real customer lifecycle stages, you need to write to the Opportunities endpoint, not just the Contacts endpoint.

Create or update an opportunity with the appropriate pipeline ID and stage ID. You get these IDs from the Pipelines API:

GET https://rest.gohighlevel.com/v1/pipelines/

Map each meaningful event from your source to a GoHighLevel stage. For a fitness business: new trial signup maps to "Trial", first paid enrollment maps to "Active Member", last attendance more than 30 days ago maps to "At Risk", cancellation maps to "Churned".

In Make.com, use a second Router after the contact upsert to handle the opportunity logic. Each route checks the event type and writes the corresponding stage ID.

Step 6: Add logging and error handling

Every Make.com scenario should write a record to a log sheet on each execution. Minimum columns: run timestamp, contact email, action taken (created, updated, skipped), GoHighLevel contact ID, and error message if the run failed.

Set Make.com's error handling to "Resume" on most steps so one bad record does not stop the entire scenario run. Capture the error in a variable and write it to the log row instead of throwing.

For critical failures (API authentication errors, invalid sub-account ID), use Make.com's error routing to send a Slack or email alert. Silent failures in CRM sync are the worst kind. The CRM looks fine but is quietly falling behind. If you manage many scenarios at once, our checklist for patching Make.com scenarios safely helps you ship changes without breaking live syncs.

Where it gets complicated

The six steps above handle the straightforward case. Here is what adds real development hours.

Sub-account ID management in agency setups. If you manage multiple GHL sub-accounts through one Make.com organization, every scenario needs to resolve the correct locationId before making any API call. The cleanest approach is a Config sheet that maps client name to sub-account ID and a Make.com data store lookup at the start of each scenario. Hardcoding location IDs into scenario logic is a maintenance trap.

Phone number format conflicts. GoHighLevel stores phone numbers in E.164 format (+15551234567). Most booking and scheduling platforms store them as unformatted strings (555-123-4567, (555) 123-4567, or raw digits). A normalization step before the search query prevents duplicate contacts caused by format mismatch. A Make.com text function can strip non-digits and prepend the country code, but edge cases (extensions, international numbers) need explicit handling.

Webhook replay on Make.com failures. If Make.com is mid-scenario when a webhook arrives and the scenario errors, the webhook event is not automatically retried. GoHighLevel data can lag for records that hit errors. Build a reprocessing flow: log unprocessed events to a queue (a separate Google Sheet row), and run a separate daily scenario that attempts to reprocess any queued records from the past 24 hours.

GoHighLevel's custom field ID vs key inconsistency. The Contacts API sometimes accepts custom field updates by field ID (a numeric string like 5f7c3d4e6a) and sometimes by field key (contact.membership_type), depending on the API version and endpoint. Test explicitly before assuming either format works on all endpoints. The v2 API (currently in beta) standardizes this, but most production integrations still use v1.

Deduplication when email and phone both differ. If a customer books under a different email than the one in GoHighLevel, such as a work email vs personal email, the search will return no match and create a duplicate. Implement a secondary phone-number lookup when the email search returns empty, and a merge step if both lookups return results with different IDs.

Make.com vs Zapier for GoHighLevel: when to use which

If you only need a simple one-step handoff, such as creating a contact from a single form, either platform works. When your flow needs branching, data normalization, a config lookup, or a reprocessing queue, Make.com is the safer choice because Routers, Data Stores, and error routes are built in. If a native module does not cover what you need, call the GoHighLevel REST API with Make.com's HTTP module. For a broader view of stack choices, see our comparison of orchestration tools in Make vs n8n vs Apps Script.

Multiple locations: route events to the right GoHighLevel sub-account

With an agency-level API key you must pass locationId on every call. Resolve it at the start of the scenario so downstream steps are location-aware.

A lightweight pattern that has worked in production:

• Keep a Config sheet with two columns: client and locationId.
• On scenario start, look up the row by client slug from the incoming event.
• Set locationId as a variable for all subsequent API calls.

Example Config sheet (CSV):

client,locationId
westside-gym,ab12cd34ef56
north-hvac,77889900aabb
academy-east,1122cc33dd44

This removes hardcoded IDs and makes handoff simpler when a client adds a new location.

Two-way sync: what is safe to sync back from GoHighLevel

Pick a source of truth per field. A common split: the booking or field app owns identity and status fields. GoHighLevel owns pipeline stage and follow-up artifacts such as tasks and notes. If you also need to reflect CRM changes back to the source, avoid ping-pong loops by tagging CRM-written records or storing a last_synced_at marker. If your account does not provide outbound notifications for the object you need, poll GoHighLevel on an interval and only push deltas.

Real-world results

A fitness franchise syncing two gym locations from iClass Pro into GoHighLevel through Make.com eliminated manual contact management entirely for its active member base of several hundred enrolled members. The scenario runs on each enrollment, status change, and cancellation event. GoHighLevel pipeline stages now reflect actual membership status within seconds of a change in the booking system.

A service business using GoHighLevel for its sales pipeline, with HCP for field technician scheduling, automated call disposition logging and calendar sync to GHL via Make.com. Technicians update job status in their field app. GoHighLevel deals move to the corresponding stage automatically.

In both cases, the value is not the speed of any individual update. It is that the CRM becomes trustworthy. Pipeline reports are run off real data. Follow-up tasks are triggered automatically on stage changes. The team stops maintaining two systems in parallel.

Frequently asked questions

Does Make.com have a native GoHighLevel integration?

Yes. Make.com includes native GoHighLevel modules for contacts, opportunities, and conversations. For most sync work the native modules are sufficient. For custom field updates or endpoints not covered by the native modules, use Make.com's HTTP module with a raw API request to rest.gohighlevel.com/v1/.

What GoHighLevel plan do you need for API access?

API access is available on all paid GoHighLevel plans, including the $97 per month Starter plan for sub-accounts. The API key is generated in the sub-account Settings under Integrations. Agency-level API access requires an agency account.

How do you prevent duplicate contacts in GoHighLevel?

Always search by email before creating a new contact. If the email search returns no match, do a secondary search by phone number. Only create a new contact if both searches return empty. This catches most duplicates caused by format variation or alternate emails. GoHighLevel does not have a native merge API endpoint in v1, so preventing duplicates upfront is the only clean solution.

Can Make.com sync GoHighLevel in real time or only in batches?

If your source system supports outbound webhooks, Make.com can process each event as it happens. If the source only has a queryable API, use a Make.com scheduled trigger polling on a 15 to 30 minute interval. Most modern SaaS platforms support webhooks.

How do you handle GoHighLevel API rate limits in Make.com?

GoHighLevel's v1 API allows 100 requests per 10 seconds per sub-account. For most service businesses this is not a constraint. If you are doing bulk historical syncs such as backfilling thousands of contacts, add a Make.com Sleep module between batches to stay within limits. For ongoing event-driven syncs the rate limit is rarely hit because events arrive spaced out in real time.

What is the typical cost to run this in Make.com?

Make.com pricing is based on operations. A scenario that searches, creates or updates a contact, and logs a row uses roughly 4 to 6 operations per event. At 500 events per month that is 2,500 to 3,000 operations, which fits on the Core plan.

---

If you are running GoHighLevel and spending time each week reconciling it with a booking platform, scheduling tool, or field service app, we have built this exact pattern for service businesses across fitness, HVAC, and education verticals. See our live iClass Pro to GoHighLevel build for a deeper walkthrough: Automate iClass Pro to GoHighLevel. Book a 15-minute call and we will tell you in the first five minutes whether your source system maps cleanly to this architecture or needs something different. See also our CRM automation service for a full breakdown of what we build.