Setup and development
Shopify custom app development and integrations
We build custom Shopify apps for the business rules that off-the-shelf apps can't handle, and connect your ERP, accounting, shipping and marketplace systems to your store.
5.0 client ratingShopify App Store
3 of our apps are live on the Shopify App Store
We take our own apps through Shopify's review process, publish them, support them and keep them up to date. Every custom app we build for clients uses the same architecture and quality standards.
ChatTXE - WhatsApp Button
Visitors reach you on WhatsApp in one tap. Set it up without code, with pre-filled messages, variables that add product and page details, and mobile-friendly button designs.
Stock alertsTXE - Back in Stock Alert
When a sold-out product is back, waiting customers get an automatic email in their own language. Win back lost sales and track subscribers, opens and conversions.
Store designTXE - Custom Code
Add scripts, meta tags and HTML without touching theme files. Ready-made templates for GA4, Google Ads, Meta Pixel and Search Console, and no code left behind when you uninstall.
What we build
Everything is built on Shopify's official development surfaces, in a way that holds up through platform updates.
Custom apps
Apps installed only on your store, running inside your Shopify admin.
Shopify Functions
Discount, shipping and payment method rules for cart and checkout, defined in code.
Checkout extensions
Business invoice fields, consent checkboxes and information blocks with checkout extensibility.
Admin extensions
Custom actions and blocks for your team on order and product screens.
System integrations
Two-way data flow with ERP, accounting, warehouse and shipping software.
Automations
Trigger, condition and action workflows with Shopify Flow.
All your systems in one flow
With Shopify at the centre, we connect your ERP, accounting, shipping and marketplace systems to the same data flow. We define up front when and how an order, a stock movement or a price change reaches each system.
- Real-time data through official APIs and webhooks
- Queues, retries and logging when something fails
- Clear rules on which system is the source of truth
- Error and alert notifications for your team
Problems we solve
Where off-the-shelf apps fall short, we automate the tasks your team repeats every day.
Wholesale and B2B
Price lists by customer group, minimum order rules and dealer approval flows.
Cart and checkout rules
Discount, shipping and payment method rules by product, region or customer.
Product personalisation
Engraving, sizing and bundle options managed together with price and stock.
Warehouse and shipping
Order picking, multi-warehouse routing, labels and tracking number automation.
Reporting and data export
Regular export of order, stock and customer data to your ERP, accounting system or data warehouse.
Legal and business requirements
E-invoicing, terms acceptance, business invoice details and consent records.
Systems we connect
Integrations are built on official APIs and webhooks. The list grows with each project.
- ERP systems
- Accounting software
- Inventory management
- DHL
- UPS
- FedEx
- Amazon
- Etsy
- Admin GraphQL API
- Storefront API
- Webhooks
- Shopify Functions
- Metafields and metaobjects
Example: updating stock levels with GraphQL
Stock data from the ERP is written to the right location through the Shopify Admin GraphQL API. In a real project every call is queued, retried on failure and logged.
mutation SetStock($input: InventorySetQuantitiesInput!) { inventorySetQuantities(input: $input) { inventoryAdjustmentGroup { reason } userErrors { field message } }} # Variables{ "input": { "name": "available", "reason": "correction", "quantities": [{ "inventoryItemId": "gid://shopify/InventoryItem/30322695", "locationId": "gid://shopify/Location/64850362", "quantity": 42 }] }}How development runs
- 1
Technical discovery
We review your systems, data models and business rules and decide which data flows in which direction.
- 2
Architecture and sign-off
We agree the Shopify surface to use (app, Function, extension) and how errors are handled.
- 3
Development
Code is written on a development store and managed under version control.
- 4
Testing and launch
Acceptance testing with real data, then installation on the live store.
- 5
Monitoring and maintenance
API version updates and error logs are tracked regularly.
How day-to-day work changes
Before
Before integration
- Orders keyed into the ERP by hand
- Stock updated from a spreadsheet at the end of the day
- Shipping labels printed from a separate panel
- Marketplace and store stock out of sync
After
After integration
- Orders reach the ERP the moment they're placed
- Stock changes flow to every channel automatically
- Tracking numbers added to orders automatically
- Errors are logged and your team is notified
What we watch for in integration projects
Each of these is written into the technical scope of every project.
- 01API rate limits and queuing during busy campaign periods
- 02Choosing a unique key (SKU, barcode) to match products and variants
- 03Which system wins when data conflicts
- 04Shopify API versions being released four times a year
- 05Transferring personal data in line with privacy law
What we hand over
Hizmete dahil
- Technical scope and architecture document
- Source code and version history
- Installation and configuration
- User and operations documentation
- Warranty support after launch
Also worth planning for
- API access and a test environment for the other system (ERP, shipping) are provided by you
- Some software needs an integration module licensed separately
- Source code ownership and the maintenance model are set out in the contract
Client · Technology, B2B
DC Network Turkey: Shopify for a B2B technology store
“Where data centres meet” — DC Network Turkey is growing its store on Shopify with Shopiuzman.
Frequently asked questions
Can't find the answer you're looking for? Get in touch directly.
Why build a custom app when an off-the-shelf one exists?
If an existing app does the job, we'll recommend it. A custom app makes sense when your business rule is unique, when you want to replace several apps with one solution, or when you don't want to give a third party access to your data.
Do Shopify Functions need Shopify Plus?
No. Functions can be used on every plan through App Store or custom apps. Some checkout customisations are only possible on Shopify Plus, and we flag those during scoping.
What if our ERP has no API?
We look at alternatives such as file-based transfer (FTP, XML, CSV) or a database middleware layer. The security and timing risks are written clearly into the technical document.
Will Shopify updates break the integration?
Shopify's APIs are versioned and older versions are supported for a set period. Under maintenance, we plan version upgrades in advance.
Who owns the source code?
It's set out in the contract. Our standard option is that ownership of code built for you, along with its documentation, is handed over to you.
Let's talk about your project.
We'll listen to your needs and agree on scope, timeline and technical approach.
