B2B e-commerce integrations: ERP, punchout, EDI, payments & API

A B2B online store is only as good as its connections: to your ERP, to your customers’ procurement systems, to the payment, tax and shipping services your business already runs on. The CS Order Suite is built as a layer that docks onto those systems – with a ready adapter for SAP Business One, punchout and EDI for procurement, and a project path for everything else. This page lists every path and says plainly which is standard and which is set up per project.

Your system of record stays where it is.

The CS Order Suite never talks to your ERP directly; it talks through an adapter – a clearly bounded layer per system. Items, inventory, prices and orders remain authoritative in the ERP, and an update on one side does not break the other. A new system means a new adapter, not a rebuild of the store.

Which ERP systems can be connected?

For SAP Business One a ready adapter is in production. Other ERPs – NetSuite, Microsoft Dynamics 365 Business Central, Sage, Epicor, QuickBooks Enterprise and others – are connected via a project adapter. The deciding question is not the product name but whether the system exposes a reachable interface. These are the usual routes, from straightforward to involved:

What the SAP Business One adapter synchronizes is described on the ERP integration page; the fundamentals of connecting any ERP to an online store are in the guide ERP e-commerce integration.

The second integration points at your customers’ procurement systems.

Large accounts order exclusively from their own procurement platform – SAP Ariba, Coupa, Jaggaer, Oracle iProcurement, SAP SRM – because that is where approvals and budgets live. The CS Order Suite reaches them two ways: as a punchout catalog (cXML and OCI), where the buyer selects items in your live store and the cart returns as a requisition; and via EDI 850/855/856/810 for accounts that exchange purchase orders, acknowledgments, ship notices and invoices as documents. Both are standard on the platform.

How do payments, sales tax and carriers connect?

These services differ from company to company, so they are integrated per project against the providers you already have accounts with – not bundled as fixed connectors.

What about n8n, Make, Zapier – and API access for our own systems?

The CS Order Suite is built API-first on Laravel; integrations use the same HTTPS/JSON endpoints as the application itself. API access for your systems is provided per project – endpoints and credentials scoped to your use case and separated per storefront. There is no public self-service API with open documentation.

Every integration path at a glance

Four facts, and the effort can be sized.

Blanket effort estimates for integrations are not serious – a system with a clean REST interface and a grown legacy system are worlds apart. With these four points we can usually name the direction in the first conversation:

1. Which system, which version? ERP or inventory system, with release – older releases often expose different interfaces.
2. Is there a documented interface? REST, OData, SOAP or an SDK – and is the documentation available?
3. Which data should stay in sync? Items and inventory are the base case; customer-specific pricing, order write-back and documents come on top.
4. Where does it run? Reachable from the internet or inside your network – that decides the access route, not the feasibility.