Shopify quietly pushed a significant infrastructure update to its B2B merchant base in late May 2026: a fully documented, publicly accessible B2B Checkout API that extends the platform’s existing wholesale tools with net payment terms, company-level pricing logic, and purchase order number injection — all natively within Checkout Extensibility. The rollout, currently limited to Shopify Plus merchants on annual plans above $2,500/month, is already prompting agencies and operators to retire custom-built wholesale portals that have defined B2B ecommerce architecture for the past several years.
The announcement landed without a major keynote moment — Shopify distributed it through a developer changelog entry and a quiet post in the Shopify Community forums — but its downstream implications are anything but quiet. For wholesale brands running parallel DTC and B2B channels, this update collapses what was previously a two-platform problem into a single checkout environment.
What exactly does the new B2B Checkout API do?
At its core, the API allows developers to programmatically pass company context — account tiers, negotiated price lists, credit terms, and PO numbers — directly into Shopify’s native checkout flow. Previously, achieving this required either a headless build using Hydrogen, a middleware layer like Convictional or NuOrder, or a heavily customized Shopify theme with third-party app dependencies stitched together at the cart level.
The new API surface exposes four key objects: companyContact, paymentTermsTemplate, priceListOverride, and purchaseOrderMetafield. Together, they give developers the hooks to build wholesale checkout flows that feel identical to DTC flows from the front end, while routing order data through company-level logic on the back end.
- Net-30, Net-60, and Net-90 payment terms are now injectable at checkout without a third-party payment gateway workaround
- Company-specific price lists — previously only surfaced in the B2B portal — can now be enforced at the checkout API level
- PO numbers are captured as structured metafields, not freeform text, enabling cleaner ERP sync
- Draft order conversion flows are fully supported, closing a long-standing gap between sales-rep-created orders and self-serve checkout
Which merchants are already using this in production?
Kirra Supply Co., a Sydney-based workwear brand doing roughly $18M annually across DTC and wholesale, began beta testing the API in March 2026 through its Shopify Plus account manager. The brand had been running a parallel wholesale portal on NuOrder since 2022, which required manual CSV exports to sync into its NetSuite ERP instance three times per week.
“We were spending about 14 hours a week on wholesale order reconciliation. With the B2B Checkout API piping directly into our NetSuite connector, that’s down to under two hours. The PO number as a structured metafield alone was worth the migration cost.” — Daniel Forsythe, Head of Operations, Kirra Supply Co.
Portland-based home goods brand Weld & Grove, which generates approximately $9M annually with roughly 40% coming through wholesale accounts, used the API to consolidate its sales rep ordering flow. Previously, reps created draft orders manually in Shopify admin, then emailed PDF invoices. Now, reps log in through a company-gated storefront, apply account-specific pricing, and submit orders through the standard checkout — with net terms applied automatically based on the company profile.
“Our sales reps were the biggest skeptics. They thought anything touching checkout was going to create friction for their accounts. After two weeks in production, not one rep has asked to go back to draft orders.” — Megan Thorp, VP of Sales, Weld & Grove
How does this affect existing B2B middleware platforms like Convictional and NuOrder?
The competitive pressure on third-party B2B commerce middleware is real, though executives at those platforms are framing the Shopify update as a complement rather than a displacement threat — at least publicly.
Convictional, which raised a $50M Series B in 2024 and has positioned itself as a supplier network and wholesale onboarding platform, serves a different use case than pure checkout logic. Its value proposition centers on retailer onboarding, EDI compliance, and multi-retailer order routing — functionality that the Shopify B2B Checkout API does not replicate. However, for Shopify Plus merchants whose primary B2B use case is direct wholesale to independent retail accounts, the API meaningfully reduces the surface area where Convictional adds value.
NuOrder, now owned by Lightspeed Commerce, faces a sharper challenge. Its core product is a wholesale ordering portal, and its Shopify integration has historically been a selling point for brands that want to keep Shopify as their system of record. If Shopify’s native checkout can now serve the ordering workflow that NuOrder’s portal previously owned, the justification for a $600–$1,200/month NuOrder subscription becomes harder to defend for smaller wholesale operations.
“We’re not worried about Shopify building checkout logic. Our differentiation is the buyer network — 500,000 retail buyers who log into NuOrder to discover and reorder from brands. Shopify can’t replicate that distribution layer.” — Chris Silber, Chief Revenue Officer, NuOrder by Lightspeed
What does this mean for Shopify app developers building on B2B?
The Shopify app ecosystem around B2B has been one of the faster-growing segments of the App Store over the past 18 months. Apps like Wholesale Gorilla, Wholesale Helper, and B2B Ninja have built significant merchant bases — collectively serving tens of thousands of Shopify stores — by solving the exact problems that the new Checkout API now addresses natively.
For these developers, the calculus is familiar: Shopify builds native functionality that competes with third-party apps, and developers must either move up the value chain or accept churn. Wholesale Gorilla, which charges between $34 and $149/month and claims over 12,000 active installs, has already acknowledged the challenge in its internal product roadmap, according to two agency partners familiar with the situation.
The pattern echoes what happened to abandoned cart apps after Shopify nativized that workflow in 2023, and to review apps after Shop Reviews launched in late 2024. Developers who survived those transitions did so by expanding scope — adding loyalty logic, customer segmentation, or post-purchase flows that extended beyond the native capability.
- Wholesale Gorilla’s differentiation now leans on its volume discount rules and tiered pricing UI, which the API does not replicate visually
- B2B Ninja is reportedly accelerating development of an ERP sync layer to stay relevant as the checkout flow commoditizes
- Wholesale Helper has pivoted its positioning toward minimum order quantity enforcement and product catalog restrictions — gaps the API leaves open
How should Shopify Plus agencies be advising wholesale clients right now?
Agency leaders are split on how aggressively to recommend migration to the new API for existing clients. The core tension is between implementation cost and long-term stack simplification.
Brendan Kell, Director of Commerce at Elkfox, a Sydney-based Shopify Plus agency that manages several wholesale-heavy merchants, has been running internal assessments since the API entered public beta. His team’s conclusion: for merchants doing under $5M in wholesale GMV annually with relatively simple pricing structures, the native API is ready for production. For merchants above that threshold with complex tiered pricing, multi-currency requirements, or deep ERP dependencies, a phased migration is more appropriate.
“The API is genuinely production-ready for straightforward wholesale use cases. But if you have 400 price lists, currency-specific net terms, and a SAP integration that was hand-built over three years, you’re not ripping that out in a sprint. We’re advising a 90-day assessment before any client commits to full migration.” — Brendan Kell, Director of Commerce, Elkfox
The agency calculus also involves revenue implications. Shopify Plus agencies that have built and maintain custom B2B portal solutions for clients are looking at a potential reduction in ongoing retainer scope if the native API eliminates the need for that custom infrastructure. Kell estimates that B2B portal maintenance represents roughly 15–20% of his agency’s recurring revenue — a meaningful number that shapes how urgently his team pushes clients toward native tooling.
What are the known limitations of the B2B Checkout API in its current form?
Shopify’s rollout documentation is explicit about several functional gaps that remain in the current version of the API. Merchants and developers evaluating adoption should account for the following constraints:
- Multi-location net terms — where different shipping locations on a single company account carry different credit terms — are not yet supported; all terms are applied at the company level
- The API does not expose split-payment functionality, meaning accounts that require partial deposit plus net terms on the balance must still use a workaround through Shopify’s draft order system
- Company-level spending limits and credit line enforcement are read-only via the API; adjustments must still be made through Shopify admin or the GraphQL Admin API separately
- International markets with mandatory e-invoicing requirements (Italy, Germany, France under the EU 2024 e-invoicing directive) are not natively compliant; merchants in those markets need a compliant middleware layer regardless
Shopify’s developer documentation indicates that multi-location terms and split-payment support are on the H2 2026 roadmap, though no firm release dates have been communicated to Plus account managers as of late May.
For mid-market wholesale operators running on Shopify Plus, the strategic direction is clear even if the current implementation has edges. The platform is systematically closing the gap between its DTC and B2B checkout capabilities — and the third-party ecosystem built around that gap is now on a compression timeline that will define which B2B commerce tools survive the next 18 months.
