Checkout Extensibility Build
Checkout UI extensions for trust content, delivery choice, gifting and post-purchase upsell. Native, upgrade-safe, and no longer dependent on checkout.liquid.
New York, NY
Shopify Plus & Headless Development in New York
Checkout extensions, Shopify Functions, B2B wholesale and Hydrogen builds for New York brands running two or three channels off one catalogue.
Delivered remotely for brands across New York and New York.
Scale · New York
Why New York brands come to us for this
- B2B company profiles and price lists that replace the line-sheet PDF your showroom emails out.
- High-AOV checkout hardening for fine jewellery: deposits, appointments, made-to-order lead times.
- Shopify Functions for case packs, minimums and volume breaks instead of three overlapping apps.
- One inventory pool across DTC, showroom and retail door — no market-week oversells.
- An honest headless recommendation, including the frequent answer that you do not need it.
Almost no serious brand in this city is pure DTC. There is a direct channel, a showroom, a wholesale book, sometimes a retail door in Nolita or on Bleecker, and the four of them are held together by exported spreadsheets and a very patient operations manager. That is the specific problem Shopify Plus was built to solve, and it is the part most New York brands have paid for and never turned on.
We build the unused portion. Company profiles and per-account price lists so a boutique buyer reorders at their terms without emailing anyone. Quantity and case-pack rules written as Shopify Functions rather than stacked apps. Checkout UI extensions for gift notes, delivery-window selection and post-purchase upsell. Where a showroom appointment or a made-to-order lead time belongs in the flow, it goes in the flow.
Headless comes up in every conversation here, usually because someone in the Flatiron tech corridor recommended it. Sometimes it is right — a heavy editorial content layer, a configurator, a genuine performance ceiling. Usually it is not, and we will say so before you spend six figures on a Hydrogen build to solve a theme-weight problem.
Local context
Wholesale on 47th Street and in the Garment District showrooms
New York is where wholesale still runs on relationships and paper, and the two clearest examples are the Diamond District on 47th Street and the Garment District showrooms a few blocks west. Fine jewellery brands need high-AOV carts with appointment booking, made-to-order lead times, deposit flows and fraud-resistant checkout — every one of those is a Plus configuration, not a bespoke platform. Apparel wholesale needs case packs, minimums, season-dated line sheets and net terms that match what your rep already promised the buyer. Both channels want the same inventory pool as your DTC site, because oversells in market week are the most expensive kind. And with the Javits calendar setting the order dates for a large share of the region's home, gift and fashion trade, we scope Plus builds in phases that land before the show, not during it.
Scope
What Plus & Headless includes
The same standard of work we run for every client — applied to a New York brand’s realities.
Full service detailShopify Functions
Custom discount, delivery and payment-method logic written as Functions. Volume tiers, bundle pricing and B2B rules run server-side instead of via three stacked apps.
B2B on Shopify
Company profiles, price lists, payment terms, quantity rules and a self-serve reorder portal. Wholesale and DTC on one catalogue, one inventory, one admin.
Shopify Markets & Localisation
Multi-currency, multi-language, market-specific catalogues, domain routing and correct hreflang. Expansion without a store-per-country sprawl.
Headless Hydrogen Storefront
Hydrogen on Oxygen with the Storefront API, edge caching and streaming SSR. We build this only when the performance or content case is real, and we say so when it isn't.
ERP, PIM & 3PL Integration
NetSuite, Business Central, Akeneo or a 3PL wired in through a documented middleware layer with retry logic, error alerting and a reconciliation report.
Scoped and quoted for your New York store
We do not work off a rate card. Every New York engagement starts with a fixed statement of work — named deliverables, named dates, one number — written after we have looked at your store, not before. If a smaller first step would serve you better, we will say so.
Get this scopedHow it runs
From kickoff to results
Technical Discovery
We map your systems, order flows and edge cases end to end, then document where data breaks today. Output is an architecture diagram you can hand to any engineer.
Solution Design
Native-versus-custom decision for every requirement, with cost and maintenance load attached. Plenty of requests get answered with a $0 native setting.
Build in Sprints
Two-week sprints in a dev store with a staged demo at the end of each. You see working software every fortnight, not a status deck.
Load & Failure Testing
Peak-traffic simulation, payment-failure paths, partial-sync recovery and a rollback plan. We break it in staging so BFCM doesn't break it live.
Launch & Enablement
Phased rollout, monitoring dashboards and training for ops and finance. Every custom component ships with a README and a named owner.
Proof
Plus & Headless results
Anonymised under NDA. Figures pulled from the client’s own analytics.
Supplements (Subscription DTC)
~$4.2M/yr, 60% subscription revenue, 22 SKUs, US · Shopify Plus (Recharge, Klaviyo)
Monthly subscription churn hit 9.4% and the cancel flow was a single button on a hosted page nobody had touched in three years. Support processed 340 subscription changes a month by hand because customers could not do it themselves. The named constraint: no forced logins. The brand refused to gate account access behind a password reset, which ruled out every off-the-shelf portal.
9.4% → 6.1%monthly subscription churnheld for five consecutive months, not a single-month dip
+34%12-month customer LTV$187 to $251 on the subscriber cohort
19% → 38%of revenue from email + SMScategory benchmark for a healthy program is 25-40%
-71%subscription support tickets340/mo to 98/mo after the self-serve portal launched
Home Goods & Furniture
~$11M/yr, 2,300 SKUs, configurable upholstery, US · Shopify Plus + Hydrogen storefront (Oxygen)
Fabric, leg and size options turned 2,300 SKUs into more than 40,000 variant permutations, and the Liquid theme rendered a configurable PDP in 6.9 seconds on mobile. Collection filtering ran client-side, so 40% of shoppers left before the first product painted. The named constraint: the ERP stayed. It was the single source of truth for stock and lead times and was not up for replacement.
6.9s → 1.4smobile LCP75th-percentile field data on configurable PDPs
+64%CVR on configurable products0.44% to 0.72%. Sitewide conversion rate rose 23%
+52%organic sessionsserver-rendered facets made 1,900 filter combinations indexable for the first time
+$2.4Mincremental annualized revenuemonth-8 run rate vs. the pre-build baseline
In their words
Clients on this work
Reorder time 20 min → 3 min
“We sell wholesale into about 400 accounts and were still taking reorders by email like it was 2009. They built the B2B catalog on Shopify with net-30 terms and per-account price lists, and moved our whole rep team onto it in one week. Average reorder went from roughly 20 minutes of back-and-forth to under three.”
Director of WholesaleFood & beverage brand, ~$22M/yr · Dallas, TX
Verified client, 2025LCP 4.1s → 1.3s
“A Hydrogen build plus a NetSuite sync that our own team had failed at twice. Inventory finally matches between the warehouse and the storefront, which sounds boring and is the most valuable thing anyone has done for us this year. LCP went from 4.1s to 1.3s. The honest part: the first six weeks felt slow and I genuinely wasn't sure we'd picked right — it only clicked once we moved to a standing Thursday call with the engineers instead of account-manager summaries.”
CTOJewelry brand, ~$18M/yr · New York, NY
Verified client, 2026FAQ
Plus & Headless in New York — your questions
For most New York brands, yes. Company accounts with multiple buyers, assigned price lists, case-pack and minimum rules, net terms and self-serve reorder cover the majority of what a showroom does between markets. What it does not replace is the market-week conversation itself, and it should not — it removes the rekeying afterwards so your reps spend the season selling instead of transcribing.
Yes, with the right configuration. Shopify Payments plus a fraud layer, manual review rules for high-value first-time orders, deposit and made-to-order flows via Functions, and appointment booking wired into the PDP. The larger risk with high-AOV carts in this category is not fraud, it is the buyer wanting to see the piece — so the storefront's job is to get them booked into the showroom, not just checked out.
Not because of that. Headless earns its cost when you have a genuine content-and-commerce complexity or a performance ceiling a Liquid theme cannot reach. It adds real budget and permanent engineering overhead. We model both options against your actual traffic and content requirements and tell you which one wins, including when the answer is the cheaper one.
Backwards from the order dates. The wholesale side ships first if your revenue calendar depends on the show, then DTC improvements land in the quieter weeks after. We work in two-week sprints with a staged demo at the end of each, so if the calendar moves you can stop after any phase with working software rather than a half-finished build.
No. Shopify has retired it in favour of checkout extensibility, and anything still running on it is on borrowed time. We migrate custom checkout logic into checkout UI extensions and Functions, which survive platform upgrades instead of blocking them.
For most mid-market brands, yes. Company accounts, per-company price lists, net payment terms and quantity rules cover the majority of wholesale workflows natively. Where it falls short is complex quoting and contract pricing, which we handle with Functions or a light custom app.
Through a documented middleware layer, never point-to-point. Every sync gets idempotency keys, retry with backoff, dead-letter handling and alerting into your Slack. You also get a daily reconciliation report so a silent failure cannot run for a week.
Next step
Plus & Headless for your New York brand.
Thirty minutes with the strategist who would actually run your account. We screen-share your store, read your data live, and tell you the three highest-value things we can see from the outside.
Shopify or Shopify Plus stores doing $150k/mo or moreFounder, CEO or eCommerce lead on the callNo deck and no pitch — we open your store instead
Prefer to write it out? [email protected] gets a real reply the same business day, Mon-Fri, 9am-6pm MT.