# ERP & eCommerce Integration Services | NetSuite, Acumatica, Epicor P21, SAP B1

> ERP to eCommerce integration from Michigan: sync products, inventory, pricing, orders, and customers between Magento, Shopify, WooCommerce, or BigCommerce and NetSuite, Acumatica, Epicor Prophet 21, SAP Business One, or Dynamics. 85% fewer fulfillment errors on a recent WMS integration.

**Keywords:** ERP eCommerce integration, NetSuite Magento integration, Epicor Prophet 21 integration, Acumatica eCommerce integration, SAP Business One integration, WMS integration, Salesforce HubSpot integration, ERP integration services Michigan, middleware development

**Source:** https://reeddynamic.com/services/erp-integration/

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NetSuite · Acumatica · Epicor P21 · SAP B1 · Dynamics · WMS · Salesforce · HubSpot

# ERP and eCommerce integration that keeps stock, orders, and pricing honest.

If your team re-keys orders, exports CSVs, or fixes stock counts by hand, the fix is an integration — built with idempotent writes, retries, and monitoring so it doesn't become the next thing you babysit. Reed Dynamic builds that middleware from Ann Arbor, Michigan.

[Scope an integration](https://reeddynamic.com/contact/) · [See integration results](https://reeddynamic.com/work/)

![Diagram of eCommerce, ERP, and WMS systems connected by middleware]

**ERP eCommerce integration** connects your online store (Magento 2, Shopify, WooCommerce, BigCommerce) to your ERP or WMS (NetSuite, Acumatica, Epicor Prophet 21, SAP Business One, Dynamics) so products, inventory, pricing, orders, invoices, and customers stay in sync automatically. Reed Dynamic builds these integrations for $5,000–$75,000 with monitoring included; one recent WMS integration cut fulfillment errors 85%.

## Integrations we build

### ERP ↔ storefront

Products, attributes, tier/customer-specific pricing, inventory by warehouse, orders, invoices, shipments, customers, credit terms.

- NetSuite
- Acumatica
- Epicor P21
- SAP B1
- Dynamics

### WMS & fulfillment

Order routing to the right warehouse, pick/pack status, tracking back to the customer, returns. 85% fewer fulfillment errors on a recent build.

- WMS
- ShipStation
- EasyPost
- 3PL

### CRM & marketing

Salesforce, HubSpot, Klaviyo — leads, accounts, order history, and lifecycle events flowing both directions.

- Salesforce
- HubSpot
- Klaviyo

### Tax, payments & finance

Avalara, TaxJar, Stripe, Braintree, Authorize.net; invoice and payment reconciliation to the GL.

- Avalara
- Stripe
- QuickBooks

### EDI & B2B documents

850/855/856/810 flows with trading partners, mapped into your ERP and storefront.

- EDI X12
- AS2
- SFTP

### PIM & catalog

Akeneo, Salsify, or spreadsheet-driven catalogs pushed to every channel with validation.

- Akeneo
- Salsify
- Feeds

## How we build integrations that don't break

1. ### Map every system and field
  Including the spreadsheets nobody admits are load-bearing.
2. ### Decide the source of truth per field
  Price lives in the ERP; web copy lives in the store; stock lives in the WMS. Ambiguity here is why integrations fail.
3. ### Design sync cadence per entity
  Webhooks for orders and stock; batches for catalog.
4. ### Build idempotent, retried, queued
  Every write is safe to repeat; failures land in a dead-letter queue with context.
5. ### Instrument and document
  Dashboard, alerts, runbook. The next engineer isn't guessing.

### Verified client review

★★★★★

> “This case was so complex that we didn’t know if the integration was even possible. They found a way to make it work. They have a craving for knowledge which was a real asset for us.”

Owner, graphic design & web design agency

HubSpot + Salesforce + CloudCraze commerce integration, $50k–$70k, 2018–2019
[Verified review on Clutch (verified phone interview) →](https://clutch.co/profile/reed-dynamic)

## Build vs. iPaaS connector

|  | iPaaS connector (Celigo, Boomi, etc.) | Custom middleware (Reed Dynamic) |
| --- | --- | --- |
| Upfront cost | Low | $5k–$75k |
| Recurring cost | Per-connection / per-transaction fees forever | Hosting + optional support retainer |
| Custom pricing, bundles, multi-warehouse | Often limited or extra | Built to your model |
| Legacy / undocumented systems | Usually unsupported | Reverse-engineered as needed |
| Ownership | Vendor-hosted | Your code, your accounts |
| Best for | Standard mappings between mainstream systems | Anything with business logic or a legacy system |

## ERP & integration FAQs

**

### How much does an ERP to eCommerce integration cost?

**

Point-to-point integrations start around $5,000. Full middleware syncing products, inventory, pricing, orders, invoices, and customers between an ERP and a storefront typically runs $20,000–$75,000 depending on entities, volume, and how well-documented the ERP's API is. See [pricing](https://reeddynamic.com/pricing/).

**

### Which ERPs do you integrate?

**

NetSuite, Acumatica, SAP Business One, Epicor Prophet 21, Microsoft Dynamics 365 / Business Central, QuickBooks Enterprise, and custom or legacy ERPs via database, flat-file, or EDI. On the storefront side: Magento 2, Shopify, WooCommerce, BigCommerce, and custom carts. Read about [our Epicor Prophet 21 work](https://reeddynamic.com/blog/maximize-your-e-commerce-efficiency-woocommerce-magento-and-epicor-prophet-21-integration/).

**

### Should we use an iPaaS like Celigo or build custom middleware?

**

An iPaaS connector is fine when both systems are mainstream and your mapping is standard. Custom middleware wins when you have customer-specific pricing, complex product structures, multiple warehouses, legacy systems without connectors, or when the per-transaction iPaaS fees exceed the build cost within a couple of years. We'll recommend either honestly.

**

### How do you keep integrations from silently failing?

**

Idempotent writes, retries with backoff, a dead-letter queue for records that can't sync, and a monitoring dashboard with alerting — so the ops team sees a failure within minutes, not when a customer calls. This is how a recent WMS integration cut fulfillment errors by 85%.

**

### Real-time or batch sync?

**

Inventory and order status usually need near-real-time (webhooks or short polling). Product and pricing updates are often fine in batches. We design per entity, based on how stale each field is allowed to be.

**

### Do you integrate CRMs like Salesforce and HubSpot?

**

Yes. Our verified Clutch review is for a HubSpot + Salesforce + CloudCraze commerce integration — a project the client didn't know was possible until we shipped it. Read it on the [Work page](https://reeddynamic.com/work/).

## What are your people re-keying today?

Tell us which systems and which fields. We'll come back with a source-of-truth map and a fixed-scope bid.

            [Start a project](https://reeddynamic.com/contact/) · [All custom software →](https://reeddynamic.com/services/custom-software/)

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