Integrations · Wisconsin

# Custom Shopify Apps & Integrations

Custom Shopify apps and integrations that connect your store to ERPs, warehouses, custom pricing, B2B workflows and anything the app store does not cover.

Also searched as: custom Shopify app · Shopify app developer · Shopify API integration · Shopify private app

- **Starting at:** $1,500

- **Typical timeline:** 3–8 days

- **Service area:** Wisconsin & nationwide

- **Response:** Within one business day

## Custom Shopify Apps & Integrations for Wisconsin businesses

Custom Shopify Apps & Integrations from Wisconsin Tech Shop: Custom Shopify apps and integrations that connect your store to ERPs, warehouses, custom pricing, B2B workflows and anything the app store does not cover. We work with businesses throughout Wisconsin, including Milwaukee, Madison, Green Bay, Appleton, Kenosha, Eau Claire, La Crosse, Wausau and the Northwoods. Pricing typically starts at $1,500, and most projects take 3–8 days.

### What's included

- Custom apps with the Shopify Admin API
- Checkout and Shopify Functions customizations
- ERP, WMS and CRM connections
- Webhooks and background jobs
- Admin UI inside Shopify

What this can look like

A Wisconsin wholesaler builds a custom Shopify app that applies contract pricing from its ERP for every logged-in account.

Illustrative example of a typical project.

## Who it's for

Businesses with disconnected tools, teams doing double data entry, ecommerce stores and manufacturers syncing inventory, and software companies needing integrations built.

## How it works

1. **Systems map:** We map every tool you use, what data each holds and where it needs to go.
2. **Integration design:** We design the sync rules and error handling and quote a fixed price.
3. **Build & test:** We build and test the integration with real data, including edge cases like refunds and duplicates.
4. **Monitor:** We monitor integrations and alert you before a failed sync becomes a problem.

## Custom Shopify Apps & Integrations pricing

Pricing typically starts at $1,500, and most projects take 3–8 days. Every project gets a fixed quote after a free discovery call.

### What affects the cost

- Number of systems and data types to sync
- API quality of each system
- One-way vs. two-way sync
- Volume of data and real-time needs
- Historical data migration

[Compare pricing for all services](https://wisconsintechshop.com/pricing/)

## Why Wisconsin businesses choose us

We see it constantly in Wisconsin offices: someone spends Monday morning copying orders into QuickBooks. We automate that job so they can do the work only a person can do.

### Shipping and logistics know-how

Real-time rates, label automation, perishables and freight: we have built the systems that get orders out the door.

### You own everything

Your code, domain, data and accounts stay in your name. No lock-in and no hostage situations.

### Fast turnaround

Quick fixes often start the same day, and most projects launch in days or weeks, not months.

### A client portal from day one

Log in anytime to see project progress, invoices, payments, site health and messages.

## Custom Shopify Apps & Integrations FAQs

### Should I build a custom app or use an existing one?

Use an existing app when one fits and is reliable. Build custom when you need your own logic, deep integration or want to avoid stacked monthly fees.

### Can you connect two systems that do not have a built-in integration?

Usually, yes. If both systems have an API, webhooks or even a reliable export, we can build a dependable connection between them.

### Why not just use Zapier?

Zapier is great for simple tasks. When volume grows, logic gets complex or per-task costs climb, a custom integration is often cheaper, faster and more reliable.

## Related services

- [Shopify Store Development & Shopify Experts](https://wisconsintechshop.com/ecommerce/shopify-development/): Shopify stores built, customized and fixed by a developer: themes, apps, checkout, subscriptions, B2B and integrations with the rest of your business. (From $1,250)
- [ERP Integration & Small Manufacturer ERP](https://wisconsintechshop.com/custom-software/erp-integration/): Connect your ERP to your website, ecommerce, CRM and shipping, or build a lightweight ERP for a small manufacturer that has outgrown QuickBooks. (From $3,000)
- [B2B Wholesale Ordering Portal](https://wisconsintechshop.com/ecommerce/b2b-wholesale-ordering-portal/): Give wholesale and dealer customers a portal to see their pricing, reorder in seconds, pay on terms and track shipments, without calling your office. (From $4,500)
- [API Integration Services](https://wisconsintechshop.com/integrations/api-integration-services/): Connect your business systems through APIs and webhooks so orders, customers, payments and inventory flow automatically between them. (From $750)
- [QuickBooks Online Integration](https://wisconsintechshop.com/integrations/quickbooks-integration/): Sync invoices, payments, customers, items and expenses between QuickBooks Online and your store, CRM, POS or custom software. (From $750)
- [Google Sheets Automation](https://wisconsintechshop.com/integrations/google-sheets-automation/): Make Google Sheets work for you: automatic imports, reports, emails, approvals and syncs with your other tools, or a smooth upgrade to a real app. (From $300)

## Custom Shopify Apps & Integrations across Wisconsin

We work with businesses statewide, on site across much of Wisconsin and remotely everywhere.

- [Milwaukee, WI](https://wisconsintechshop.com/wisconsin/milwaukee/)
- [Wauwatosa, WI](https://wisconsintechshop.com/wisconsin/wauwatosa/)
- [West Allis, WI](https://wisconsintechshop.com/wisconsin/west-allis/)
- [Oak Creek, WI](https://wisconsintechshop.com/wisconsin/oak-creek/)
- [Waukesha, WI](https://wisconsintechshop.com/wisconsin/waukesha/)
- [Brookfield, WI](https://wisconsintechshop.com/wisconsin/brookfield/)
- [Menomonee Falls, WI](https://wisconsintechshop.com/wisconsin/menomonee-falls/)
- [West Bend, WI](https://wisconsintechshop.com/wisconsin/west-bend/)
- [Madison, WI](https://wisconsintechshop.com/wisconsin/madison/)
- [Sun Prairie, WI](https://wisconsintechshop.com/wisconsin/sun-prairie/)
- [Middleton, WI](https://wisconsintechshop.com/wisconsin/middleton/)
- [Fitchburg, WI](https://wisconsintechshop.com/wisconsin/fitchburg/)
- [Janesville, WI](https://wisconsintechshop.com/wisconsin/janesville/)
- [Beloit, WI](https://wisconsintechshop.com/wisconsin/beloit/)
- [Appleton, WI](https://wisconsintechshop.com/wisconsin/appleton/)
- [Oshkosh, WI](https://wisconsintechshop.com/wisconsin/oshkosh/)
- [Neenah, WI](https://wisconsintechshop.com/wisconsin/neenah/)
- [Fond du Lac, WI](https://wisconsintechshop.com/wisconsin/fond-du-lac/)
- [Green Bay, WI](https://wisconsintechshop.com/wisconsin/green-bay/)
- [De Pere, WI](https://wisconsintechshop.com/wisconsin/de-pere/)
- [Sheboygan, WI](https://wisconsintechshop.com/wisconsin/sheboygan/)
- [Manitowoc, WI](https://wisconsintechshop.com/wisconsin/manitowoc/)
- [Racine, WI](https://wisconsintechshop.com/wisconsin/racine/)
- [Kenosha, WI](https://wisconsintechshop.com/wisconsin/kenosha/)
- [Eau Claire, WI](https://wisconsintechshop.com/wisconsin/eau-claire/)
- [La Crosse, WI](https://wisconsintechshop.com/wisconsin/la-crosse/)
- [Wausau, WI](https://wisconsintechshop.com/wisconsin/wausau/)
- [Stevens Point, WI](https://wisconsintechshop.com/wisconsin/stevens-point/)
- [Marshfield, WI](https://wisconsintechshop.com/wisconsin/marshfield/)
- [Superior, WI](https://wisconsintechshop.com/wisconsin/superior/)

## Tell us what you need

Get a free, no-pressure quote from a Wisconsin development team. Tell us a little about your business and we'll reply within one business day with next steps, rough pricing and honest advice.

- Big projects and small ones are all welcome
- Fixed-price quotes, no surprise invoices
- You own your code, data and accounts
- A client portal to track progress, invoices and payments
- Rooted in Wisconsin, serving businesses nationwide

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Source: https://wisconsintechshop.com/integrations/shopify-app-development/
Contact: hello@wisconsintechshop.com · https://wisconsintechshop.com/contact/