# Shopify & BigCommerce Development | Themes, Apps & ERP Integration | Michigan

> Shopify and BigCommerce development from Ann Arbor, Michigan: custom themes, private apps, headless storefronts, B2B configuration, and the ERP, WMS, tax, and shipping integrations that apps can't do. Migrations to or from Magento and WooCommerce.

**Keywords:** Shopify development company, Shopify developer Michigan, BigCommerce development, BigCommerce developer, Shopify Plus development, Shopify ERP integration, BigCommerce API integration, Shopify custom app development, Shopify B2B

**Source:** https://reeddynamic.com/services/shopify-bigcommerce-development/

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Shopify · Shopify Plus · BigCommerce · Headless · Integrations

# Shopify and BigCommerce development for stores that need more than an app can do.

Custom themes that convert, private apps for the logic the App Store doesn't cover, and the ERP, WMS, tax, and shipping integrations that keep inventory honest. Built by the same Michigan team that ships Magento 2 — so you get a platform recommendation, not a sales pitch.

[Talk about your store](https://reeddynamic.com/contact/) · [Compare platforms](https://reeddynamic.com/blog/woocommerce-vs-magento-vs-shopify/)

![Shopify and BigCommerce storefronts on desktop and mobile]

**Reed Dynamic provides Shopify and BigCommerce development** — custom themes, Shopify private apps, Shopify Plus and B2B configuration, BigCommerce Stencil themes and API integrations, headless storefronts, ERP/WMS integration, and migrations to or from Magento and WooCommerce — from Ann Arbor, Michigan. Typical projects run $8,000–$60,000.

## What we build

### Shopify theme development

Online Store 2.0 themes in Liquid built from your design system — fast, accessible, and editable by your team with sections and metaobjects.

- Liquid
- OS 2.0
- Metaobjects

### Shopify custom & private apps

Business logic the App Store doesn't have: pricing rules, allocation, bundles, ERP sync, custom checkout extensions on Plus.

- Admin API
- Checkout extensions
- Functions

### BigCommerce development

Stencil themes, B2B Edition configuration, and REST/GraphQL integrations. Strong fit for catalog-heavy B2B without transaction fees.

- Stencil
- B2B Edition
- REST / GraphQL

### ERP & back-office integration

Orders, inventory, pricing, customers synced with NetSuite, Business Central, Acumatica, Epicor, QuickBooks — monitored, retried, documented.

- NetSuite
- Business Central
- ShipStation

### Headless storefronts

Hydrogen or Next.js on the Storefront API when custom UX or multi-brand content justifies it.

- Hydrogen
- Next.js
- Storefront API

### Migrations

To Shopify or BigCommerce from Magento, WooCommerce, or legacy carts — or the other direction when you've outgrown them. Every URL redirected.

- Data migration
- 301 maps
- SEO preserved

## Shopify vs. BigCommerce vs. Magento 2 — quick guide

|  | Shopify / Plus | BigCommerce | Magento 2 |
| --- | --- | --- | --- |
| Time to launch | Fastest | Fast | 10–20 weeks |
| Transaction fees | Unless Shopify Payments | None | None |
| Native B2B | Plus only | B2B Edition | Strong |
| Complex catalogs / multi-store | Limited | Moderate | Strong |
| Deep custom logic | Via private apps | Via API | Unlimited |
| Hosting & security | Managed | Managed | You (or we) manage |
| Typical build | $8k–$60k | $10k–$60k | $25k–$80k |

## Shopify & BigCommerce FAQs

**

### Shopify, BigCommerce, or Magento 2?

**

Shopify for speed, simplicity, and a huge app ecosystem — best for straightforward catalogs and DTC. BigCommerce when you want Shopify-like hosting with more native B2B and catalog flexibility and no transaction fees. Magento 2 for complex catalogs, multi-store, deep B2B, or heavy customization. We build all three, so the recommendation follows your requirements. Read [our platform comparison](https://reeddynamic.com/blog/woocommerce-vs-magento-vs-shopify/).

**

### How much does Shopify or BigCommerce development cost?

**

A custom theme build runs $8,000–$30,000; a Shopify Plus or BigCommerce B2B setup with integrations $25,000–$60,000; a custom private app $5,000–$25,000. Migrations from Magento or WooCommerce fall in the $15,000–$50,000 range. See [pricing](https://reeddynamic.com/pricing/).

**

### What can't Shopify apps do that you can?

**

Anything with business logic that apps don't anticipate: customer-specific pricing synced from an ERP, multi-warehouse allocation rules, complex bundles, legacy system connections, and reliable two-way order/inventory sync with monitoring. We write private apps and middleware for exactly these gaps.

**

### Do you integrate Shopify or BigCommerce with our ERP?

**

Yes — NetSuite, Acumatica, Business Central, Epicor P21, SAP B1, QuickBooks, and custom systems via the Shopify Admin/GraphQL and BigCommerce REST/GraphQL APIs, with idempotent writes, retries, and alerting. See [ERP integration](https://reeddynamic.com/services/erp-integration/).

**

### Can you migrate us off Magento or WooCommerce to Shopify?

**

Yes, and we'll tell you first if you'd lose functionality you rely on. Products, customers, orders, and content migrate with every URL redirected so rankings survive.

**

### Do you do headless Shopify?

**

Yes — Hydrogen or Next.js storefronts on the Storefront API, when the business case (custom UX, content-heavy, multi-brand) justifies the added complexity over a well-built theme.

## Store outgrowing its apps?

Tell us what the platform won't do. We'll tell you whether it's an app, middleware, or a migration — and quote it.

            [Start a project](https://reeddynamic.com/contact/) · [Magento 2 development →](https://reeddynamic.com/services/magento-2-development/)

Or call [(734) 535-8954](tel:+17345358954) · Mon–Fri 9–5 ET