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.
Istanbul
Shopify Plus & Headless Commerce in Istanbul
Plus and headless work for Istanbul companies whose wholesale book and export retail channel have to run off the same catalogue without colliding.
Delivered remotely for brands across Istanbul and Türkiye.
Scale · Istanbul
Why Istanbul brands come to us for this
- B2B company accounts and per-buyer price lists that replace the WhatsApp and spreadsheet order flow the showroom still runs on
- Per-market published pricing in USD, EUR and GBP so wholesale and export retail never collide in one price field
- Catalogue visibility rules per market, so restricted or unshippable products simply do not appear where they cannot go
- ERP and stock integration scoped around the Turkish accounting and electronic invoicing stack you already answer to
- Checkout extensibility used for duty, DDP messaging and destination-specific delivery promises rather than cosmetic upsells
Most Istanbul businesses that need Shopify Plus need it for wholesale, not for traffic. The showrooms in Merter and Osmanbey still take orders the way they always have, by WhatsApp photo, by spreadsheet, and by a buyer walking the floor twice a year, and the cost of that is not the labour. It is that nobody can see stock, prices differ by who asked, and a European buyer who wants to reorder at 9pm has to wait until morning in Istanbul. Shopify B2B puts company accounts, per-buyer price lists, minimum quantities and net payment terms behind a login that is open when your customer is.
The second reason is markets. An export catalogue that serves US retail, EU retail and wholesale across several countries needs published prices per market rather than one price with currency conversion applied at the till, plus per-market catalogues where a product is simply not offered somewhere it cannot be shipped. Plus gives you the market count and the B2B layer to keep those separate without maintaining three stores and three sets of inventory.
Headless is a narrower conversation and usually the wrong one first. If the storefront is slow it is almost always images, apps and third-party scripts rather than Liquid, and Hydrogen will not fix a page that loads eleven marketing tags. Where headless earns its keep here is a genuinely composite front end, an existing content platform or configurator that has to own the experience, or a product that is customised before it is priced. We say so plainly rather than selling the more expensive architecture.
Local context
The wholesale floor is the system of record, and it has to stay that way
The integration question in Istanbul is rarely a headless one. It is that the business already runs on a Turkish ERP and accounting stack, invoicing is issued electronically under Turkish Revenue Administration rules, and the warehouse is worked from a system nobody is going to replace because a storefront arrived. So the work is boundary definition: what Shopify owns, what the ERP owns, and what happens when they disagree. In practice that means stock and price flow one direction, orders flow the other, export orders carry the fields your customs broker and courier need on the commercial invoice, and the finance team keeps issuing invoices from the system they already answer to the tax authority with. We scope integrations around that reality with a middleware layer and a documented failure mode for every sync, because the day it breaks is the day you have 400 wholesale line items in limbo and a container booked.
Scope
What Plus & Headless includes
The same standard of work we run for every client — applied to a Istanbul 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 Istanbul store
We do not work off a rate card. Every Istanbul 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 Istanbul — your questions
For repeat and reorder business, yes, and that is where most of the volume sits. Company accounts, buyer-specific price lists, minimum and increment quantities, net terms and a live stock view cover the ordering your team currently does by message. What it does not replace is the first meeting and the fabric in the hand. Treat the portal as the thing that removes the fifteen follow-up messages after the buyer has already decided.
Not if the boundary is drawn first. The pattern that holds is Shopify as the storefront and order capture, the ERP as the record for stock, invoicing and finance, and a middleware layer moving defined fields in one direction each way. Problems come from bidirectional syncs where both systems believe they own inventory. We define which system wins each field before writing anything, and we build a queue and an alert so a failed sync surfaces rather than silently dropping orders.
No. Shopify Markets handles multiple currencies and market-specific pricing on standard plans, and plenty of Istanbul exporters run USD, EUR and GBP without ever touching Plus. Plus becomes the answer when you need a real B2B channel with company accounts and terms, higher market counts, checkout extensibility for duty and delivery logic, or the API limits for an ERP integration moving thousands of line items. We size that against the actual order book, not the ambition.
Less than people expect, because Shopify already serves both markets from a global CDN and the slow part of most Istanbul storefronts is uncompressed product photography plus a stack of apps. We measure the real waterfall first from US and EU test locations. If the answer is images and scripts, we fix that in a fraction of the time and cost of a Hydrogen rebuild, and you keep the theme editor your merchandiser uses.
Usually not. A well-built Liquid theme hits sub-2s LCP and costs a fraction to run. Headless earns its keep when you need a custom front-end framework, a heavy CMS-driven content layer, or interactive product configuration Liquid cannot serve. We will talk you out of it if the numbers don't hold.
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.
Next step
Plus & Headless for your Istanbul 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.