TL;DR — A production SimPRO + GoHighLevel (GHL) integration syncs contacts, won opportunities → jobs, job stage → pipeline stage, and job completion → review request. Native connectors rarely cover two-way logic. VijayaTech Labs ships this via n8n or Pabbly with documented field maps — live in 3–6 weeks (integration page).
Why trades contractors need this sync
UK and Australian trades businesses commonly run:
- GoHighLevel — lead nurture, pipelines, SMS/WhatsApp
- SimPRO — scheduling, job costing, technicians in the field
Without sync, sales marks an opportunity Won in GHL while ops creates the job manually in SimPRO. Job completion never updates the CRM. Review requests get forgotten.
We covered the SimPRO + n8n + Xero invoicing loop separately (trades stack guide). This post focuses on CRM ↔ job software, not accounting.
Two-way sync overview
graph LR
GHL[GoHighLevel CRM] <-->|Contacts, stages| MID[n8n / Pabbly]
MID <-->|Jobs, status| SIM[SimPRO]
MID --> WA[WhatsApp / SMS updates]
MID --> REV[Review request on complete]Field map: Contact / Customer
| SimPRO field | Direction | GoHighLevel field | Notes |
|---|---|---|---|
| Customer name | ↔ | Contact name | Split first/last if required |
| ↔ | Dedup key | ||
| Phone | ↔ | Phone | E.164 normalize |
| Site address | → | Custom field job_address | New leads from GHL |
| SimPRO customer ID | → | Custom field simpro_customer_id | Idempotent upsert |
| GHL contact ID | ← | Custom field ghl_contact_id | Write back after create |
Field map: Opportunity → Job
| Trigger | Action |
|---|---|
| GHL opportunity stage = Won | Create SimPRO job (or quote → job) |
GHL project_type custom field | Map to SimPRO job type / cost centre |
| Assigned sales rep | Map to SimPRO salesperson or tag |
| Lead source | Preserve on both sides for reporting |
Guard: Do not create duplicate jobs — check simpro_job_id on opportunity before create.
Field map: Job status → Pipeline
| SimPRO job status | GoHighLevel pipeline stage |
|---|---|
| Scheduled | Job Scheduled |
| In Progress | In Progress |
| Completed | Completed / Awaiting Review |
| Cancelled | Lost / Cancelled |
Updates should be event-driven (webhook or polling with cursor), not nightly CSV exports.
Customer comms automation
On each stage change, trigger WhatsApp or SMS via GHL or WhatsApp Cloud API:
| Job stage | Customer message |
|---|---|
| Scheduled | Confirmation + window |
| En route | Technician ETA (if tracked) |
| Completed | Thank you + review request |
Error handling essentials
- Dead letter queue — failed API calls logged with payload
- Retry with backoff — SimPRO rate limits vary by plan
- Manual reconcile view — Google Sheet or admin dashboard for mismatches
- Field map doc — every transform versioned in git
SimPRO vs ServiceM8?
| Platform | Typical fit |
|---|---|
| SimPRO | Larger UK/AU trades, multi-crew |
| ServiceM8 | Smaller AU field-service operators |
ServiceM8 + CRM map: ServiceM8 integration guide.
Proof timeline
A UK trades contractor went live with full SimPRO + GHL sync — opportunity automation and review triggers — within 3 weeks of Blueprint sign-off (field ops automation).
FAQ
Can SimPRO sync with GoHighLevel natively?
There is no robust native two-way sync for most trades use cases. Custom API plumbing via n8n or Pabbly is standard.
How long does a SimPRO + GHL build take?
Typically 3–6 weeks fixed scope from Blueprint sign-off.
What does it cost?
Field ops builds start from $5,000 — scoped in the Automation Blueprint.
Do you also sync Xero?
Yes — often as a second workflow. See SimPRO + n8n + Xero.