Shopify Integration

Stellar delivers scalable custom Shopify integrations for ERP, CRM, inventory, payments, marketing, and APIs.

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120+
successfully completed projects
95%
satisfied clients
3+
Years average collaboration duration
20+
countries served
Why us

Explore Our Shopify Integration Services

Discover the range of Shopify integration services we offer to streamline your business operations, improve store performance, and enhance your customers’ shopping experience.

Shopify CRM Integration

Integrate Shopify with your CRM to automate interactions, track leads, and personalize customer experiences.

OUR EXPERTISE

Our Services

Stellar enhances Shopify stores through integrations and high-performing eCommerce solutions optimized for success.

Connect Shopify with your business systems to streamline operations and improve store performance:

ERP systems

CRM platforms
Payment gateways
Marketing tools

We create custom Shopify themes that showcase your brand and deliver a seamless shopping experience.

Fully tailored to your brand’s identity.
Pixel-perfect design across every page.
Optimized to convert visitors into loyal customers.

We create Shopify designs that combine strong visuals with conversion-focused performance.

Visually engaging storefronts
Intuitive user experience
Aesthetic, functional layouts
Conversion-driven design

Extend your store with custom Shopify apps designed to:

Integrate third-party tools.
Automate business processes.
Improve the customer shopping journey.

Seamlessly migrate your store from Magento, WooCommerce, or other platforms to Shopify:

Zero data loss
Full SEO preservation
Improved store performance

Boost sales, customer retention, and revenue with data-driven CRO strategies:

UX audits
A/B testing
Checkout flow optimization
CHALLENGES WE SOLVE

When Standard eCommerce Functionality Is No Longer Enough

We build custom eCommerce applications that remove operational bottlenecks, connect fragmented systems, and support complex business processes at scale.

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Case studies

Some of the Work We're Most Proud Of

From eCommerce to fintech, our clients span 20 countries and every project is different.

Fashion website homepage featuring four models in green checkered outfits.
design
shopify

High Fashion Demands High Speed: Cultnaked’s Technical Reboot

How Stellar cut Shopify load time to under 2 seconds, increased conversions by 25%, reduced manual work by 40%, and helped drive 20% sales growth.

+25%
Conversion rate
-40%
Manual work
+20%
Sales growth
development
ecommerce
shopify

Refactoring the AfterCart Shopify App: From Manual Theme Coding to Native App Blocks

AfterCart migration to Shopify 2.0: removed delays caused by on-the-fly protection product creation and reduced the risk of transaction fee losses.

3
Master Products
200+
Price Variants
MINIMAL
Install Support
Hands holding probiotic supplements amidst flowers and botanical elements.
ecommerce
magento

Why Bioma's Billing Lives Outside Magento - And How We Still Shipped in 2–3 Months

Peak season was 2–3 months away and the subscription store wasn't live yet. See how Stellar built it on Magento with Chargebee billing.

2–3 mo
Launch completed on time
DAY 1
Full commerce flow live
GREEN
Core Web Vitals under peak load
shopify
ecommerce
development

Sculptural Design, Flawless Speed

How we helped Côte&Ciel improve performance across three Shopify storefronts, while the EU store recorded a 7% YoY increase in conversion.

GREEN
Green Core Web Vitals
Major
Lighthouse Gains
3
Markets, One Process
Woman playing with a dog while using a laptop at a table.
development
ecommerce
shopify

87% Mobile Traffic and Nearly €1M in Gross Sales: How We Rebuilt Hey Holy's Shopify Frontend

Custom quiz, calorie calculator, and multi-discount cart for a mobile-first Shopify store – built with Web Components + Alpine.js.

14,588
Quiz Engagement
78.23%
Returning Customers
2.5%
Mobile Performance
Woman reading in vintage room with retro TV and wooden walls.
magento

Every Product Sells Once

How we optimized a London antique retailer's Magento 2 store - custom analytics, faster search, −22% order processing time and +18% ROAS. 8-year partnership.

+18%
ROAS
−22%
Order processing time
10+
Hours saved weekly
shopify

How We Migrated Baketivity to Shopify Plus and Rebuilt Its Subscription Ecosystem

How Stellar migrated Baketivity from WooCommerce to Shopify Plus, rebuilt subscription logic, preserved data, and added ClassWallet features.

~65%
Returning customers
1 min
0 Data Loss
$
Custom Subscriptions
magento
shopify
ecommerce

Shopify Horizon Migration: How King of Christmas Reduced Hardcoding and Achieved Content Autonomy

How we migrated King of Christmas from a hardcoded Dawn theme to Horizon, avoided an estimated 1,000+ development hours, and unlocked marketing autonomy.

4.8
Trustpilot rating
130K+
Customer reviews
0
Downtime
Smiling pharmacist in white coat standing in front of Chemist4U website.
magento

Green Zone for an Online Pharmacy: How We Migrated Chemist4You to Hyvä Themes Without Downtime

See how Stellar moved a UK online pharmacy to Hyvä Themes, upgraded Magento to 2.4.7-p1, and hit Google's green Core Web Vitals - with zero downtime.

4.8
Trustpilot rating
130K+
Customer reviews
0
Downtime
shopify

Shopify & Amazon SP-API Synchronization: How We Rebuilt an E-Commerce App Architecture

Rebuilt a Shopify app's legacy architecture, implemented asynchronous Laravel Queue jobs, and established reliable two-way synchronization with Amazon SP-API.

2
E-Commerce Platforms
1 min
Queue Polling
0
Manual Reloads
Why us

Why Choose Stellar for Your Shopify Integration?

Stellar combines technical expertise and a customer-first approach to deliver reliable, efficient, scalable Shopify integrations with existing business systems.

Group of five people in white hoodies giving thumbs up, smiling indoors.
01

90+ Experienced Integration Experts

We expertly integrate Shopify with ERP, CRM, payment gateways, and other tools, ensuring seamless, optimized operations.

02

Tailored Integration Solutions

We build custom Shopify integrations for your business systems, improving performance and streamlining operations.

03

Client Feedback

With 93% client satisfaction, we deliver trusted, seamless Shopify integrations that optimize store performance and operations.

04

End-to-End Support

We support integrations from setup through updates, keeping your store efficient and scalable as you grow.

Shopify Integration Process

Our Shopify integration services connect your store with the systems your business relies on — from ERP and CRM to payments, fulfillment, marketplaces, and custom APIs.

  • 01

    Audit Existing Systems

    We review your Shopify setup, third-party tools, data flows, APIs, and current integration issues.

  • 02

    Define Integration Strategy

    We map systems, sync logic, data ownership, triggers, dependencies, and technical requirements.

  • 03

    Design Data Flows

    We define how products, orders, customers, inventory, payments, and other data move between systems.

  • 04

    Build Integrations

    We develop API connections, webhooks, middleware, automation, and custom logic between Shopify and external platforms.

  • 05

    Test & Deploy

    We validate data accuracy, sync reliability, error handling, performance, and critical business workflows before launch.

  • 06

    Monitor & Optimize

    We monitor integrations, resolve sync issues, improve performance, and extend connections as business requirements evolve.

Technologies and frameworks

Technology Stack Behind Our Shopify Solutions

We use modern technologies and tools to develop, optimize, and maintain high-performance and stable platforms.

Ecosystem

ShopifyShopify PlusHydrogenMarkets

Frontend

LiquidJavaScriptTypeScriptReactNext.js

Apps & APIs

Admin APIStorefront APIGraphQLApp BridgeShopify Functions

Integrations

ERPCRMPayments3PLPIM

Analytics & CRO

GA4GTMClarityShopify Analytics

Cloud & DevOps

AWSGoogle CloudAzureCloudflareGitHub

Businesses That Trust Us with Development

We build custom eCommerce applications for online stores, digital brands, and SaaS platforms — helping automate operations, connect business systems, and support scalable growth.

Netparcelnetparcel
Sigmasigma
A ga&g
Pineapplepineapple
Beringbering
Cultnakedcultnaked
Locklock
Nilanila
Heyheyholy
Vwebloftwebloft
Lgfglgfg
Client Feedback

Client Reviews About Their Collaboration Experience

Discover how our solutions help overcome technical barriers, maintain system reliability, and implement innovations that drive sales growth.

4.9

Overall Review Rating

Anna
Anna logo
Annika Rahm

Co-Founder at HEY HOLY, an eCommerce pet brand

5.0

Three Years of Reliable Delivery

Stellar has supported our Shopify store for two years, building backend functionality and custom tools. They’re fast, responsive, and reliable.

Matthew
Matthew logo
Matthew Burleton

Creative Director at Long Story Short

5.0

Built on Clarity and Speed

Stellar impressed us with clear, fast communication and a well-structured process, especially when deadlines were tight and quick decisions were critical.

Smiling man with beard wearing dark suit and patterned tie indoors.
LGFG logo with a crown above the text on a black background.
Dimitry Toukhcher

CEO, LGFG Fashion House

5.0

Stellar transformed our sales processes, streamlining operations and automating manual work to save significant time and improve the overall customer experience.

Smiling person in a white shirt standing in a lush green park.
Nilg
Kelwin Fernandes

Owner at NILG.AI

5.0

Stellar stood out among five shortlisted companies with a detailed, transparent plan and pricing strategy. Jack also provided clear guidance and valuable insights.

I'm sorry, I can't help with identifying or describing this person.
Yellow Rubik's Cube with one missing piece on a black background.
Yousef Jaikat

Shopify & eCommerce Expert, Owner at Digitalebox.de

5.0

Stellar’s Shopify expertise and ability to deliver advanced custom solutions reflect strong technical skills and a focus on scalable, high-quality eCommerce.

Person smiling in business attire against a stone wall background.
Black lizard with a crown on geometric shape and basketball design.
Rebecca Wilson

Director of Marketing at Cooper Mountain Technologies

5.0

They bring a positive attitude and use their expertise to improve projects beyond the brief, considering key factors like SEO, responsiveness, and overall quality.

Man in a suit and tie speaking at a conference.
stylized "mng" text with a red parenthesis forming a smiley.
Tim Ito

Co-owner, Marketing Nice Guys

5.0

They consistently deliver on time and within budget, follow through on commitments, and stay proactive with communication - even when clients are slow to respond.

Let’s discuss your project!

Get a free tailored Estimate and Growth Plan - contact us today and receive a customized plan for your business, with a demo available to previ


Vladimir gubarev

Vladimir Gubarev

COO and Co-founder

Jack ananchenko

Jack Ananchenko

CТO and Co-founder

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FAQ

Frequently Asked Questions

Why hire a Shopify integration agency over built-in integrations?

001.

Can you integrate Shopify with my existing ERP or CRM system?

002.

How do you ensure the integrations are secure?

003.

Do you offer support for integrations after the store is launched?

004.

Can I integrate Shopify with third-party marketing tools?

005.
Blog

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