How to Connect ServiceM8 to GoHighLevel: 8 Steps

Quick answer: connecting ServiceM8 to GoHighLevel means that when a lead is won in GoHighLevel, a matching client and job open in ServiceM8 without anyone retyping them, and job status can flow back to GoHighLevel to drive follow-up. ServiceM8 has no official GoHighLevel add-on, so there are three real routes: a no-code connector such as Make or Zapier, a direct build on the ServiceM8 REST API and webhooks plus the GoHighLevel API, or having it built done for you. The steps below cover the most common flow, then where it breaks.

What are the three ways to connect ServiceM8 and GoHighLevel?

1. A no-code connector (Make or Zapier). Both platforms have apps for each side, so you can wire the flow with drag-and-drop steps and no code. This suits simple, one-way flows and an owner or office manager who is happy to maintain it.

2. A direct build on the APIs. You write a small service that listens for events and calls the ServiceM8 REST API and the HighLevel API. This gives you full control over matching, two-way status sync and error handling, and it means someone has to host, monitor and fix the code.

3. Done for you. An agency scopes the field map, builds it on one of the routes above, tests it on your real jobs and supports it. Web Blend’s ServiceM8 GoHighLevel integration is this route, from $1,800 + GST setup.

As at September 2026, here is what each connector offers:

• Make: the ServiceM8 app has Watch Jobs, Watch New Client and Watch Form Response triggers, plus Create a Client, Create a Job, List Clients, Update a Job, Update a Client and Make an API Call. Make also has a verified GoHighLevel app with actions such as Create a Contact and Create an Opportunity.
• Zapier: the ServiceM8 app has New Job, New Client, Job Queued, Job Completed and New Form Response triggers, with Create Client and Create Job actions. GoHighLevel appears on Zapier as LeadConnector, with a Pipeline Stage Changed trigger and Add/Update Contact and Add/Update Opportunity actions.

The gap to notice: Zapier’s ServiceM8 app has no search or update action, so matching an existing client and updating a job later is much easier in Make or a direct build.

How do you connect ServiceM8 to GoHighLevel, step by step?

This is the flow most trade businesses want: a won or booked opportunity in GoHighLevel creates the ServiceM8 client and job, and job status comes back to GoHighLevel to trigger review requests and follow-up.

Step 1: Write the field map before you build

List what crosses over and in which direction: name, email, mobile, job address, job description, lead source. Decide which pipeline stage counts as won, and which ServiceM8 status should do what in GoHighLevel. Decide which system wins when the two disagree. This page of notes saves most of the rework later.

Step 2: Set up authentication on both sides

• ServiceM8: for a connection to your own account, generate an API key in ServiceM8 under Settings, then API Keys, and send it in the X-API-Key header. ServiceM8’s authentication docs note you do not need a developer account for API keys. OAuth 2.0 is for public apps that serve many ServiceM8 accounts, and its access tokens last one hour before they need refreshing.
• GoHighLevel: create a Private Integration under Settings, then Private Integrations, in the sub-account. Give it only the scopes you need (contacts and opportunities for this flow), copy the token straight away because it is not shown again, and send it as a Bearer token.
• Using Make or Zapier: each app handles the connection for you, but it still needs these same credentials or a login, so store them somewhere the business controls.

Step 3: Trigger on the right GoHighLevel event

In GoHighLevel, build a workflow with the Pipeline Stage Changed trigger, filtered to your pipeline and your won or booked stage. From there, either send the data out with a webhook action to your connector or your own endpoint, or let Zapier’s LeadConnector Pipeline Stage Changed trigger pick it up. Using an opportunity trigger matters: HighLevel only includes opportunity data in a webhook payload when the workflow was triggered by an opportunity event.

The standard Webhook action sends a fixed payload of contact and opportunity data. If you need to shape the request yourself, HighLevel lists the Custom Webhook action as a premium workflow action, so check your agency’s rebilling settings before you rely on it at volume.

Step 4: Match the client before creating anything

In ServiceM8, a client is a Company in the API, and the email, mobile and phone live on the linked Company Contact record. Search client contacts on email first, then mobile. ServiceM8’s filtering supports and but not or, so email-or-phone matching takes two lookups. Only create a new client when neither lookup matches.

Step 5: Create the job and store its UUID in GoHighLevel

Create the job against the client’s company_uuid, with the job address and description filled in. Status is the one required field: set it to Quote or Work Order, whichever matches how your office works. The create job endpoint returns the new job’s ID in the x-record-uuid response header.

Write that UUID straight back to a custom field on the GoHighLevel contact or opportunity, such as “ServiceM8 Job UUID”. Every later event uses this field to find the right record, and a filled field tells your workflow not to create a second job.

Step 6: Send job status back to GoHighLevel

You have two options:

• Webhooks (preferred). Subscribe to the job object with the status field through ServiceM8’s object webhook subscription. ServiceM8 calls your URL when the status changes. The webhook payload holds only the job UUID and the list of changed fields, so your handler fetches the job to read the new status. Your endpoint has to answer with a 2xx response within 10 seconds.
• Polling. Check for changed jobs on a schedule, for example listing jobs with a $filter on status. It is simpler to host and slower to react, and every check counts against the rate limits covered below.

Then map each status to an action in GoHighLevel. ServiceM8’s job statuses are Quote, Work Order, Unsuccessful and Completed. A common map: Quote starts quote follow-up, Work Order moves the opportunity to booked and stops the chasing, Completed starts the review request, and Unsuccessful moves the opportunity to lost.

Step 7: Run a test job

Use a test contact with your own email and mobile. Move it to the won stage, check that exactly one client and one job appear in ServiceM8, then move the job through Quote, Work Order and Completed and watch each GoHighLevel action fire. Repeat the stage change to confirm it does not open a second job. Delete the test records afterwards.

Step 8: Add error alerts

Send a failure notice to a real inbox or phone whenever a step fails: an email from Make’s error handler, a Zapier error notification, or an alert from your own code. A sync nobody watches is the kind that fails quietly for weeks.

Where does a ServiceM8 GoHighLevel sync break?

• Duplicates. A lead that converts twice, or a customer already in ServiceM8 under a different email, creates a second client. GoHighLevel’s upsert contact follows the sub-account’s “Allow Duplicate Contact” setting and its email or phone priority, so check that setting matches your matching logic on the ServiceM8 side.
• Phone number formats. One system holds 0412 345 678, the other +61412345678, and a text match fails. Normalise every number to one format before comparing.
• Status mapping. Jobs created straight in ServiceM8, cancelled jobs and jobs that go back from Completed have to land somewhere sensible, or your pipeline drifts away from reality.
• Rate limits. ServiceM8 allows 180 API requests per minute and 20,000 per day per add-on per account, and returns HTTP 429 past that, according to its API reference. HighLevel documents a burst limit of 100 requests per 10 seconds and 200,000 per day for apps, per its rate limits page. A bulk import or backfill hits these first.
• Silent failures when access changes. A rotated GoHighLevel token, a ServiceM8 OAuth token that was not refreshed, or a staff member’s connector login being removed stops the sync without any warning in either app. ServiceM8 retries a failing webhook for up to 72 hours and then cancels the subscription, so an outage longer than that needs the webhook re-created.
• Who maintains it. When either platform changes a field or an app step, somebody has to notice and fix it. Decide who that is before you switch it on.

Make vs Zapier vs a custom build vs done for you

Do you even need an integration?

Maybe not. If you win a handful of jobs a week, copying a new customer into ServiceM8 takes a couple of minutes, and that can cost less than building and maintaining any sync. If the only thing you want is new GoHighLevel contacts appearing as ServiceM8 clients, a single Zapier or Make scenario does that. Build the full two-way version when double entry, a drifting pipeline or follow-up chasing already-booked customers is costing you real time or jobs.

Want it built instead?

If you would rather not own the build, Web Blend connects the two for trade businesses as a ServiceM8 Bronze Partner that runs GoHighLevel in-house. See what our ServiceM8 GoHighLevel integration includes, from $1,800 + GST setup with one fixed price before work starts. For everything else on each platform, browse every ServiceM8 build and guide and every GoHighLevel build and guide, the GoHighLevel automations we set up for tradies, and the full menu of ServiceM8 automation setup work.