CRM Integration
HubSpot, Salesforce, Zoho — automatically sync leads, contacts and deals between your website and CRM without manual data entry.
API Integration Agency Melbourne — Connect Your Website to CRMs, ERPs, Payment Systems & Third-Party Platforms
API Integration That Connects Your Website to the Systems Your Business Runs On
PMGS Digital Marketing builds and integrates APIs that connect your website to CRMs, accounting systems, payment gateways, marketing platforms and custom business tools — automating data flow and eliminating manual processes that waste your team's time.
REST & GraphQL APIs | 50+ Integrations Delivered | Melbourne Based
50+ API Integrations | REST & GraphQL | CRM / ERP / Payment / Marketing | Same-Day Support | No Lock-In
Why API Integration Matters for Modern Business Websites
Modern businesses run on multiple systems — CRM, accounting, email marketing, inventory, payment processing and more. When your website doesn't talk to these systems, data gets stuck in silos, manual processes multiply, errors accumulate and opportunities slip through the cracks.
The most common approach — using Zapier or basic plugin connectors — works for simple automations but breaks down at scale. These tools are fragile, limited in what they can do and often fail silently, meaning data stops flowing and nobody notices until damage is done.
PMGS builds proper API integrations using REST and GraphQL that connect your website to every system your business relies on. The result is automated data flow, a single source of truth and operational efficiency that frees your team from repetitive manual work.
API Integration Services We Provide
From CRM connections to custom API development — every integration your business needs.
Accounting Integration
Xero, MYOB, QuickBooks — automated invoicing, payment reconciliation and financial data sync that eliminates manual bookkeeping.
Payment Gateways
Stripe, PayPal, Afterpay — secure payment API connections with webhook handling for real-time transaction processing.
Marketing Platforms
Mailchimp, Klaviyo, ActiveCampaign — trigger automated email flows, segment audiences and sync subscriber data from website events.
Inventory Systems
Real-time stock sync between your website and warehouse or POS system — preventing overselling and manual stock updates.
Custom API Development
Build custom REST or GraphQL APIs for unique business requirements that off-the-shelf connectors can't address.
Third-Party Services
Google Maps, shipping calculators, booking systems, review platforms and any service with an available API.
Webhook Automation
Event-driven automation between systems via webhooks — triggering actions in one system when something happens in another.
What's Included in This PMGS Service
- Integration requirements discovery
- API architecture and data mapping
- REST / GraphQL API development
- Third-party API connection and configuration
- Authentication and security setup (OAuth, API keys)
- Data transformation and mapping
- Error handling and retry logic
- Webhook configuration
- Real-time data sync
- Testing and QA
- API documentation
- Performance monitoring
- Post-launch support
- Ongoing maintenance available
- Scalable architecture
- No lock-in contracts
Common API Integrations PMGS Builds for Australian Businesses
These are the integrations we build most frequently — but we can connect your website to any system with an available API.
| System | Type | What It Does | PMGS Builds? |
|---|---|---|---|
| HubSpot | CRM | Sync website leads, forms and contacts with your CRM automatically | Yes |
| Xero | Accounting | Automated invoicing and financial data sync from website transactions | Yes |
| Stripe | Payment | Secure payment processing, subscription management and webhook handling | Yes |
| Mailchimp / Klaviyo | Trigger automated email flows from website events and form submissions | Yes | |
| Google Maps | Location | Interactive maps, store locators and distance-based service area searches | Yes |
| Custom ERP | Inventory | Real-time stock levels, order management and warehouse sync | Yes |
What Happens Without Proper API Integration?
Disconnected systems create manual work, silent failures and revenue leakage as you scale.
Manual Data Entry
Without integration, staff manually copy data between systems — wasting hours every week and introducing errors that compound over time.
Data Silos
Disconnected systems mean customer data, orders and financials exist in separate places with no single source of truth. Decisions are made on incomplete information.
Broken Automation
DIY integrations using Zapier or basic plugins break silently. Data stops flowing between systems and nobody notices until a customer complains or a report doesn't add up.
Security Risks
Poorly implemented API connections can expose sensitive data — customer information, payment details and business credentials — if authentication and encryption aren't configured properly.
Scaling Problems
Manual processes that work at 10 orders per day break at 100. As your business grows, the operational bottleneck of disconnected systems becomes a ceiling on your revenue.
Lost Revenue
Slow order processing, delayed follow-up on leads, missed customer communications and inventory errors all directly cost revenue. Integration eliminates every one of these gaps.
Getting Started Is Simple — We Handle Everything
Discovery through deploy — architecture, build, test and monitoring with clear documentation.
Step 1 — Discovery
We map your existing systems, data flows and integration requirements to define exactly what needs to connect and how.
Step 2 — Architecture
API design, data mapping and security planning — defining how data will flow between systems with proper authentication and error handling.
Step 3 — Build
API development, third-party connection and data transformation built and tested in a staging environment.
Step 4 — Test
End-to-end testing with real data scenarios to verify every integration works correctly under normal and edge-case conditions.
Step 5 — Deploy & Monitor
Go-live with monitoring, error alerts and full documentation — plus ongoing maintenance to keep integrations running smoothly.
Trusted by Australian Businesses
50+
Integrations Delivered
Zero
Data Loss Incidents
80%
Avg. Manual Process Reduction
Same Day
Support
Proven Results That Drive Growth
Companies enhancing the buyer experience with our digital marketing services. See how we can help your business grow.
Jetaway Airport Parking SEO
Search Console–led optimisation for Jetaway Airport Parking — sharper intent alignment on Melbourne Airport parking queries, metadata and snippet performance, plus measurable gains in rankings, organic traffic share, and tracked keyword visibility.
29Top 10 Rankings — Keywords
↑ 9.4Avg. Position
6.1KMonthly Organic Visitors
J&V Elite Motors SEO
Local SEO and on-page uplift for J&V Elite Motors — top‑5 movement on transactional Dandenong queries, suburb landing pages across the south‑east, and sustained organic visibility backed by qualitative performance reporting.
2Local Keywords in Top 5
#9 → #3Used Car Dealers Dandenong
#10 → #4Car Yard Dandenong
J & V Elite Motors Website Design
A conversion-led used car site for Dandenong shoppers — inventory-led flows, strong local trust cues, and verified desktop PageSpeed benchmarks including 100/100 Best Practices and 0.005 CLS.
100/100Best Practices (Desktop)
0.005CLS (Desktop)
0.6sFCP (Desktop)
OZ Homes Insulation SEO
Nationwide insulation eCommerce SEO for ozhomesinsulation.com.au — 433 AU keywords monitored, 215 ranking in positions 1–5, branded #1, and measurable gains on insulated plasterboard and commercial product intents (Ahrefs + GSC-aligned reporting).
433Organic Keywords Ranking AU
215Keywords in Top 5 Positions
#1“OZ Homes Insulation” Branded
Pacific Sensor Technologies SEO
GSC-led technical SEO, intent-mapped category and service pages, and scalable IA for a national B2B instrumentation catalogue — with authority growth across backlinks, AI Overview citations, and competitive SERPs.
251Keywords Ranking
46Top-3 Positions
4.7KBacklinks (+743)
Pacific Sensor Technologies Web Design
How PMGS reworked PST’s homepage hierarchy so technical buyers can discover products faster while Calibration, Rental, and On-Site Services sit visibly alongside catalogue content — anchored to a measurable PageSpeed benchmark.
69Performance
84Accessibility
92SEO
HiTech Power Solutions SEO
How PMGS helped an Australian caravan electrical supplier lift average ranking position, grow click-through rate and expand indexed product pages in Google Search Console.
+8.6Avg Position Gain
+30%CTR
–1,425+ Keywords
Renma Windows & Glazing SEO
Technical SEO, intent-led on-page and local visibility for a Tullamarine aluminium windows & doors manufacturer — sharper commercial rankings, stronger GBP, and compounding organic sessions.
+167%Organic Traffic
#1Ranking for "Renma Windows
+22Positions on "Servery Window
Happy Sprouts Early Learning SEO
Multi-location local SEO across Craigieburn, Beveridge and Greenvale — stronger centre pages, GSC-led refinements, and alignment between Google Business Profile traffic and on-site enrolment journeys.
#2Google
16Top-10 Keywords
–1,900+ Monthly Searches
Greater Geelong Medical Centre
Bulk-billing GP clinic in central Geelong — migrated from a Wix subdomain to greatergeelongmc.com.au with HotDoc booking, bulk-billing messaging, and PSI Desktop 79 with verified Core Web Vitals.
79PSI Desktop Performance
92/100PSI SEO Score
96/100PSI Best Practices
Greater Geelong Medical Centre Google Ads
How PMGS helped a Geelong medical clinic turn high-intent local search and Performance Max into 132 tracked patient bookings and phone enquiries in two weeks — with verified account metrics.
132Conversions in 14 Days
–A$3.44 Avg Cost per Conversion
10.39%Conversion Rate
Meta Ads for Medical Centre: 72 Patient Leads
Full-funnel Meta Ads for Greater Geelong Medical Centre — awareness, lead generation and HotDoc traffic, with 72 patient leads and strong local reach across Greater Geelong.
72Leads
6,022Clicks
52,392People Reached
Denture Clinic Web Design
How PMGS launched nextgendental.com.au for a Campbellfield denture clinic — calm teal-and-white UX, six service pages, booking CTAs end-to-end, and launch-day PageSpeed scores built for an older patient audience.
91/100Accessibility
81/100Desktop Performance
0.005CLS
ITC Asset Management Website Redesign
How PMGS rebuilt itcassetmanagement.com.au — trust-led dark hero, embedded Submit Your Request, sticky Sydney phone CTAs and launch-day PSI scores topping SEO and Best Practices for corporate e-waste and ITAD buyers.
100/100SEO
100/100Best Practices
97/100Accessibility
GPT Tools eCommerce Website Redesign
Modernising GPT Tools’ online store — sharper retail UX for categories and offers, stronger trust cues for trades and DIY buyers, plus PageSpeed and Core Web Vitals improvements across mobile.
65Mobile PSI Performance
PassedCore Web Vitals (field data)
2.3sLCP (field data)
GPT Tools Google Ads
Google Ads restructuring, clearer tracking signals, Performance Max alignment, and ongoing optimisation — building a scalable paid acquisition channel alongside GPT Tools’ eCommerce footprint.
3Core Paid Services Managed
4Strategic Improvement Pillars
5/5Client Satisfaction
Great Alpine Caravans Website Redesign
Refreshing Great Alpine Caravans’ web presence — models-first browsing, trust-led storytelling, and Lighthouse-backed desktop PSI scores tailored to travellers comparing Australian-built caravan lines.
75Desktop PSI Performance
93Accessibility
100Best Practices
Renma Website Redesign
Positioning Renma as a premium Melbourne windows and doors supplier online — clearer IA, stronger trust signals, conversion-focused forms, and desktop PageSpeed Insights scores in the mid‑90s.
95Performance
1.0sLCP
0.8sFCP
Dynamic Sawing & Drilling Web Design
New dynamicsawcut.com.au — industrial UX, WordPress + Elementor, conversion-first CTAs and verified PageSpeed Insights: 96/100 desktop Performance, 83/100 mobile, 0 CLS and 1.0 s desktop LCP (Lighthouse 13.0.1).
96/100Desktop Performance
83/100Mobile Performance
1.0sLCP (Desktop)
Procom Plastics Website Redesign
Rebuild for procomplastics.com.au — structured product and industry navigation, carousel removal for leaner payloads, clearer CTAs across eight verticals and twelve product ranges, anchored to PageSpeed Insights baselines.
65Mobile PSI
85Desktop PSI
24.1sMobile LCP
Explore Our Full Web Development Services
Custom builds, WordPress, speed, API integration and migrations — one team for your stack.
Custom Website Development
Bespoke builds from scratch
Learn MoreWordPress Development
Custom WordPress sites
Learn MoreWebsite Speed & Performance
Core Web Vitals and speed optimisation
Learn MoreAPI Integration
Connect systems and automate workflows
Website Migration
Platform and hosting migrations
Learn MoreView All Web Development Services
See every web development service in one place.
Learn More
Complete Your Digital Foundation With PMGS
Pair integrations with SEO, design, eCommerce, hosting and paid media.
SEO
Fast, well-built sites rank higher — development quality directly affects your organic search performance.
Learn MoreWeb Design
Pair development with a fresh design for a complete website rebuild.
Learn MoreeCommerce Solutions
Custom development for online stores and product platforms.
Learn MoreManaged Web Services
Hosting, security and maintenance for your new build.
Learn MorePPC
Drive traffic to a site built for speed and conversion.
Learn MoreAll-In Digital Marketing
Development as part of a full-channel digital strategy under one team.
Learn More
What Our Clients Are Saying
Real feedback from Australian businesses, clubs and organisations we've supported with websites, SEO and digital marketing.
Frequently Asked Questions
Costs, REST vs GraphQL, HubSpot, Xero, timelines, legacy systems and support.
API integration costs depend on the number of systems being connected, the complexity of the data mapping and whether custom API development is required. PMGS provides fixed-scope quotes after the discovery phase. Contact us for a tailored quote.
An API (Application Programming Interface) allows different software systems to communicate with each other. Your website needs API integration when you want it to automatically exchange data with your CRM, accounting software, email platform, inventory system or any other business tool — eliminating manual data entry and keeping everything in sync.
Yes. HubSpot is one of our most common integrations. PMGS connects your website forms, lead capture and customer interactions with HubSpot CRM — automatically creating contacts, assigning leads and triggering workflows without any manual input.
Yes. PMGS builds Xero integrations that automate invoice generation, payment reconciliation and financial data sync from your website transactions. This eliminates manual bookkeeping and ensures your accounts are always up to date.
REST and GraphQL are both methods for building APIs. REST uses standard URL endpoints and is the most widely supported format. GraphQL allows more flexible data queries, requesting only the specific data needed. PMGS builds with both and recommends the best approach based on your project's requirements.
In many cases, yes. PMGS can build custom middleware, use scraping solutions or work with database-level connections to integrate legacy systems that don't offer a standard API. We assess feasibility during the discovery phase.
Simple integrations (e.g. website forms to CRM) typically take 1–2 weeks. Complex multi-system integrations with custom data transformation and error handling may take 4–8 weeks. PMGS provides a clear timeline after the discovery session.
PMGS builds all integrations with error handling, retry logic and monitoring alerts. If an integration encounters an issue, our team is notified immediately and responds same-day. Ongoing maintenance plans include proactive monitoring and issue resolution.
Stop Copying Data Between Systems — Let PMGS Connect Everything
Get a free integration consultation from PMGS — we'll map your current systems, identify automation opportunities and show you how API integration can save your team hours every week.