Catalog turnaround
Titles, descriptions, prices, images, and SKUs — every change in Square pushes to Shopify on the next turnaround. One source of record, two live storefronts.
Square ↔ Shopify, in detail.
What Crossdock unlocks.
Inventory, modifiers, orders — what routes through the terminal, and what that unlocks on the Shopify side.
What moves through the terminal
When a sale rings on Square, Crossdock moves the manifest straight through to Shopify — no warehouse in between. Every item below ships in real time via webhook, not on a polling cadence.
Modifier pass-through
Drink sizes, milk types, toppings, add-ons — your Square modifier sets survive the trip to Shopify without losing structure or hitting a 3-option cap.
Real-time inventory
Your register rings; your storefront clears. Stock for non-modifier items decrements via webhook in under a second — no 3-minute polling window for an oversell to slip through.
Multi-location routing Premium
Map each Square location to its own Shopify location and keep every pair's stock in sync separately. Three stores, one online catalog — inventory that routes the way your business actually runs.
Order sync
Shopify orders route back to Square for in-store pickup and fulfillment tracking. Refunds and cancellations clear both sides. No split ledger.
Preview-first onboarding
Every turnaround can be staged before the first write. Preview the manifest — every product, price, and image change — before Crossdock touches your Shopify catalog. One-click rollback if it's wrong.
What opens up when you bridge Square POS to Shopify
Most Square sellers who want an online store start with Square Online — zero-friction, same dashboard, no integration work. The merchants who moved to Shopify specifically did so because something on this list mattered enough to justify the switch. Each capability below requires accurate, real-time sync between Square POS and Shopify to deliver on its promise. That's what Crossdock provides.
| What merchants came to Shopify for | How Shopify delivers it | Motivation | Merchant types most affected |
|---|---|---|---|
| Native subscriptions | Shopify Subscriptions + Recharge + Bold | M3 | Coffee subscription, vitamins, beauty replenishment, snack box |
| Native B2B (wholesale tiers, net terms) | Shopify B2B (native since 2023) | M3 | Specialty food roasters, brewery, maker brands |
| Shop Pay checkout | Shop Pay (~40% mobile conversion lift) | M4 | Retail boutique, beauty, anyone mobile-conversion-sensitive |
| Deep app ecosystem | ~8000+ Shopify apps vs. Square Online's hundreds | M3 / M4 | Anyone needing a niche capability (drops UI, custom config, vertical-specific) |
| Drops + pre-orders + scheduled releases | Drops native + apps | M3 | Streetwear, limited-edition coffee, collectibles, sneakers |
| Theme customization depth | Polaris + Liquid + thousands of themes | M2 | Brand-conscious merchant, premium positioning |
| Strong technical SEO out-of-box | Schema.org, blog, fast templates | M2 | Content-driven growth (recipe blog, lifestyle, education) |
| International expansion tools | Shopify Markets (multi-currency, duty, tax) | M1 international | Brands with global appeal — beauty, art, specialty food |
| Cross-channel loyalty ecosystem | Smile.io + LoyaltyLion + Yotpo | M4 | Repeat-purchase categories (coffee, vitamins, beauty) |
| Marketplace channel integrations | TikTok Shop, Google Shopping, Meta native | M3 | Multi-channel sellers, social-commerce-leaning brands |
Crossdock provides the sync layer each of these requires. The Shopify apps themselves — Recharge, Smile.io, Klaviyo — sit above the sync layer and are not part of Crossdock. What Crossdock guarantees: your Square inventory (non-modifier items) is right in Shopify. What each capability above delivers on top of that is the app's job, not ours.
Which capabilities matter for each merchant type
Not every row above is equally relevant for every merchant type. This map shows which Shopify capabilities drive the most value by vertical — useful if you're evaluating Crossdock for a specific type of store.
●● primary unlock ● secondary — not material
| Merchant type | Subscriptions | B2B + wholesale | Shop Pay + mobile CX | Drops + limited edition | International + Markets | App ecosystem depth | Brand + SEO platform |
|---|---|---|---|---|---|---|---|
| Coffee / cafe | ●● | ● | ● | ● | — | ● | ● |
| Specialty food (winery, brewery, deli, refill, spice) | ● | ●● | — | — | ●● | ● | ● |
| Boba / juice | ●● | — | ●● | — | — | ●● | — |
| Retail (clothing, accessories, gifts) | — | — | ●● | ●● | ● | ●● | ●● |
| Beauty / salon + retail | ●● | — | ●● | — | ● | ●● | ●● |
| Art / craft / maker | — | ● | ● | ●● | ●● | ● | ●● |
Don't see your category? Every Square seller with a physical product catalog and a Shopify storefront has a Crossdock use case. The capabilities above are additive — more of them apply as your store grows.
Built for the Square ecosystem, not against it
Crossdock is built on Square's published APIs and approved through Shopify's partner review process. Neither integration is a workaround — both are officially sanctioned data lanes.
Square Online is a solid starting point for most Square sellers. Crossdock is for the merchants whose business grew past it and chose Shopify as their online storefront — with Square POS staying exactly where it is. We don't position Crossdock as a reason to leave Square. We position it as the reason you can have both.
A Sunsetora product. DPA available on day one. Open API from launch. View security posture →
Everything above routes through a single sync layer — open yours before we launch.
Run your store from Square.
Keep ringing sales on Square while Shopify stays in sync — catalog, inventory, and orders. See the plans, then install from the Shopify App Store.
App Store listing link goes live at launch.
Want a heads-up when we're live on the App Store?
Drop your email and we'll send one note the day the listing goes live.