B2B ecommerce for Microsoft Dynamics GP: the complete guide

Introduction

Microsoft Dynamics GP still runs the financials, inventory, and order management for a large base of North American manufacturers, wholesalers, and distributors. At the same time, Microsoft has published a firm end-of-life roadmap for GP and is actively steering customers toward Dynamics 365 Business Central. That combination puts B2B sellers on Dynamics GP in an unusual position: they need to solve for ecommerce today, using an ERP that was never built to support a web store, while keeping one eye on where that ERP is headed.

This guide covers what Dynamics GP is and why it’s still so widely used, why it can’t run B2B ecommerce on its own, what ERP-integrated ecommerce for Dynamics GP actually means, what Microsoft’s published GP timeline means for your ecommerce decision, the capabilities worth evaluating in a platform, how k-ecommerce fits, and a short checklist to use when you start comparing options.

What Dynamics GP is, and why so many B2B sellers still run it

Dynamics GP, originally Great Plains, is an ERP built for financials, inventory, and day-to-day operations at small and midsize businesses. It has been a workhorse for manufacturers, wholesalers, and distributors for decades, and a meaningful share of that installed base is still running it today.

Its current lifecycle status, direct from Microsoft’s own Dynamics GP lifecycle documentation: the current release line, version 18.x, falls under Microsoft’s Modern Lifecycle Policy. Under that policy, product enhancements, regulatory and tax updates, and technical support are scheduled to end December 31, 2029 (Microsoft revised this date once already, from a previously announced September 30, 2029). Security updates are planned to remain available through April 30, 2031. Microsoft also stopped selling new Dynamics GP subscription licenses to new customers as of April 1, 2026, per Microsoft’s Dynamics 365 blog.

That’s a multi-year runway, not an immediate shutoff. Plenty of GP shops have years of productive use left in the system. But it’s also long enough, and public enough, that any new, multi-year ecommerce investment deserves to be made with that roadmap in view rather than in isolation.

Why Dynamics GP has no native B2B ecommerce

Based on the information Microsoft and its partner ecosystem publish, Dynamics GP does not ship or market a native web storefront, customer portal, or B2B ecommerce module. It’s a back-office system for financials and inventory, not a commerce platform.

In practice, that leaves three paths for a company that wants to sell online from GP data: a purpose-built, ERP-integrated ecommerce platform; a narrower, connector-based integration that syncs a subset of data on a schedule; or manual re-entry, where staff retype orders, prices, or inventory counts between a generic web store and GP by hand.

Manual re-entry is the common status quo, and it’s also the most expensive option once you count the cost of it. Every manual step is a chance for a pricing error, a shipped-but-not-invoiced order, or a stale inventory count that oversells a product buyers thought was in stock. It also ties up staff time that could go toward serving customers instead of retyping their orders.

What “ERP-integrated ecommerce for Dynamics GP” actually means

ERP-integrated ecommerce for Dynamics GP means a B2B web store that reads and writes GP data in real time: pricing, inventory, customer-specific terms, and order history all flow between the web store and GP without a human retyping any of it.

That’s a different thing from generic ecommerce paired with a manual or batch sync, and different again from a connector that only moves data one way or refreshes once a day. A GP-connected order that shows up correctly the same day is useful. A GP-connected order that shows up correctly the same minute, with accurate inventory and the buyer’s actual negotiated pricing, is what changes how a sales team can operate.

What Dynamics GP’s end-of-life roadmap means for your ecommerce decision

This is the part of the decision that’s specific to Dynamics GP, and it’s worth being direct about it. Microsoft’s own materials, including a July 2026 Dynamics 365 blog post on migration options, are explicit that GP customers should be evaluating Business Central, and the lifecycle dates above are Microsoft’s currently published plan, not a rumor.

None of that means an ecommerce project on GP today is wasted work. It means the project should be built so it isn’t wasted later. A platform that only knows how to talk to Dynamics GP will need to be rebuilt from scratch if a Business Central migration happens down the line. A platform built to integrate natively with both ERPs carries the ecommerce layer, and the data model, pricing rules, and customer accounts built around it, through that migration instead of restarting it.

Migrating from Dynamics GP to Business Central is its own decision, with its own scope, timeline, and considerations that go well beyond ecommerce. For a closer look at what B2B ecommerce looks like on the other side of that migration, see B2B ecommerce for Business Central: the complete guide.

Core capabilities to evaluate in a Dynamics GP ecommerce platform

• Real-time, two-way sync with GP. Pricing, inventory, and customer-specific terms should update in both directions, not on a nightly batch job.
• No required changes or installs inside GP. The integration should read and write GP data without custom development inside the ERP itself or direct customer-facing access to it.
• B2B-specific buying features. Customer-specific catalogs and pricing, quote-to-order workflows, fast reordering from order history, and multi-level approvals for larger accounts.
• Migration portability. Whether the platform also integrates natively with Business Central (or other ERPs), so a future migration doesn’t mean rebuilding the ecommerce layer from zero.
• Security and compliance. PCI-DSS coverage for any platform that touches payment data.
• Scalability. Performance that holds up as SKU count, customer count, and order volume grow.

How k-ecommerce fits

k-ecommerce is built for B2B sellers running an ERP, and it integrates natively with Dynamics GP using proprietary sync technology: no changes or installations inside GP, and no direct customer-facing access to the ERP itself. Pricing, inventory, and customer data stay in sync in both directions, and the platform is built around the buying patterns B2B customers actually use: customer-specific catalogs and pricing, quote-to-order workflows, and fast reordering from past purchases.

k-ecommerce also natively integrates with Dynamics 365 Business Central, Acumatica, Dynamics NAV, Dynamics AX, Dynamics 365 Finance & Operations, and SAP Business One, which is directly relevant to the next section.

If you’re planning a move to Business Central

Because k-ecommerce integrates natively with both Dynamics GP and Business Central, choosing it now doesn’t lock a company into rebuilding its ecommerce layer if or when it migrates ERPs. The web store, the pricing logic, and the customer accounts built on top of k-ecommerce carry over to a Business Central integration rather than starting over. For more on what that looks like once the migration happens, see B2B ecommerce for Business Central: the complete guide.

How to evaluate B2B ecommerce platforms for Dynamics GP: a short checklist

1. Does it sync GP pricing, inventory, and customer terms in real time, in both directions?
2. Does it require any changes, custom code, or installs inside GP itself?
3. Does it support customer-specific catalogs, pricing, and quote-to-order workflows?
4. Does it also integrate natively with Business Central or other ERPs, in case of a future migration?
5. Is it PCI-DSS compliant for payment handling?
6. Has the vendor shown it can scale with your SKU count, customer count, and order volume?
7. What does implementation actually involve, and who on your team needs to be involved?

Frequently asked questions

What is Dynamics GP ecommerce?

Dynamics GP ecommerce is a B2B web store that connects to Microsoft Dynamics GP so that pricing, inventory, and order data stay in sync between the two systems, rather than being entered manually.

Does Dynamics GP have built-in B2B ecommerce?

No. Based on Microsoft’s own published materials, Dynamics GP does not include a native web storefront or B2B ecommerce module. Any ecommerce capability comes from a third-party integration built on top of GP.

Is Microsoft discontinuing Dynamics GP?

Microsoft has published an end-of-life roadmap for Dynamics GP: product enhancements, tax and regulatory updates, and technical support are scheduled to end December 31, 2029, with security updates available through April 30, 2031, according to Microsoft’s Dynamics GP lifecycle documentation. New subscription licenses stopped selling to new customers as of April 1, 2026. Microsoft is actively recommending that GP customers evaluate a move to Dynamics 365 Business Central.

How does k-ecommerce integrate with Dynamics GP?

k-ecommerce uses proprietary sync technology to read and write Dynamics GP data in real time, without requiring changes or installations inside GP itself or exposing GP directly to customer traffic.

Is k-ecommerce only for Dynamics GP?

No. k-ecommerce also natively integrates with Dynamics 365 Business Central, Acumatica, Dynamics NAV, Dynamics AX, Dynamics 365 Finance & Operations, and SAP Business One.

Should I add ecommerce before or after migrating from GP to Business Central?

There’s no single right answer; it depends on your migration timeline and how urgently you need ecommerce today. What matters more than the sequencing is choosing a platform, like one that integrates natively with both GP and Business Central, that doesn’t force you to rebuild your ecommerce layer regardless of which comes first.

See it in action

If you’re running Dynamics GP and evaluating ecommerce options, see how k-ecommerce integrates with Dynamics GP or request a demo to see real-time sync, customer-specific pricing, and quote-to-order workflows in action.