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$
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I will develop a custom shopify app with erp CRM and accounting API integration
SkillHaus
About this gig
Off the shelf Shopify apps rarely fit a growing brand's exact workflow, and generic templates break the moment your catalog or order rules get specific.
You are not alone, most serious merchants outgrow the app store fast and end up stuck with clunky fixes. I design and build custom private or public Shopify apps wired directly into your ERP, CRM, or accounting stack, so your store finally runs on logic built for your business, not a stranger's design.
What I build
- Custom Shopify private apps
- Public Shopify app development
- Shopify checkout extensions
- Shopify ERP integration builds
- Shopify CRM connection apps
- Shopify accounting software sync
- Custom admin dashboards
- Shopify Plus custom features
- Metafield and metaobject setups
- App maintenance and upgrades
Tools and tech I use
- Shopify App Bridge
- Shopify REST API
- Shopify GraphQL API
- React
- Node.js
- Remix
- PostgreSQL
- QuickBooks API
- NetSuite API
- Salesforce API
Stop settling for generic apps that almost fit your workflow. Message me with your process and I will scope a custom Shopify app built around exactly how your business truly runs now.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know SkillHaus
SkillHaus
Shopify Developer: Store Setup, Bug Fixes, Custom Coding, App Integration
- FromCanada
- Member sinceJul 2026
- Avg. response time2 hours
Languages
English, Spanish, French, German, Italian
Hello, I'm Muhammed and I run Skillhaus. I'm a Shopify Developer helping store owners launch, fix, and scale their online shops. I build stores from scratch, customize themes with clean code, resolve bugs and broken features, and integrate apps that boost speed and conversions. Work is done in Liquid, HTML, CSS, and JavaScript, tested on a staging link before anything goes live. I communicate clearly, hit deadlines, and explain fixes in plain language. Send your store link and issue, and I'll reply with a clear plan fast.
My Portfolio
FAQ
What is the difference between a private and public app?
A private app is built just for your store and stays hidden from the app store. A public app can be listed and installed on other stores too. Most clients start with a private app scoped to their exact workflow here so you always know what to expect.
Will this app survive Shopify updates?
Yes, I build using Shopify's current App Bridge and API standards and follow their versioning guidelines closely, so the app keeps working through platform updates instead of breaking unexpectedly now which means fewer surprises down the road for you
Can the app connect to more than one system?
Yes, a single custom app can pull and push data across multiple systems at once, such as your ERP and CRM together, all coordinated through one central codebase instead of several separate tools now which keeps everything running smoothly day to day.
Do you handle Shopify Plus specific features?
Yes, I have experience with Shopify Plus features including checkout extensions, script editor replacements, and custom flows that are not available on standard Shopify plans so you always know what to expect so you can plan around it with confidence
What happens to the app after delivery?
You receive full source code and documentation, so your team fully owns it going forward. I also offer ongoing maintenance plans to handle bug fixes and future feature requests as your business grows which keeps everything running smoothly day to day
How do you handle app security and permissions?
I request only the specific access scopes the app actually needs, following Shopify's least privilege guidelines, and store credentials securely so your store data stays protected at every step here which keeps everything running smoothly day to day.
Can you build custom admin dashboards too?
Yes, I regularly build custom admin dashboards inside the app so your team can view synced data, trigger actions, and monitor integration health without touching any code themselves as your business grows and full transparency about how it all works.
Do you write tests before delivery?
Yes, every app goes through functional testing across common edge cases before delivery, and I provide a short demo walkthrough so you can verify everything works exactly as expected each single day which keeps everything running smoothly day to day.
What if my requirements change mid project?
Small adjustments are included within each package. Larger scope changes are quoted separately so pricing stays fair and transparent for both of us throughout the entire project as your business grows which means fewer surprises down the road for you
Do you support ongoing feature requests?
Yes, once the initial app is delivered I offer flexible monthly retainers for new features, maintenance, and improvements so the app keeps evolving alongside your growing business as your business grows and I will walk you through the full plan first
