Why retailers move to Shopify POS
The point of moving to Shopify POS is to stop running the store and the website as two businesses. On one platform, inventory, orders, and customer profiles are a single source of truth across every location and the storefront, which ends overselling and end-of-day reconciliation and makes true omnichannel possible: buy online and pick up in store, ship from store, endless aisle, and unified clienteling. For a multi-store retailer, that consolidation is the prize, and it comes with a lower total cost of ownership than stitching a separate POS to an ecommerce platform.
Native POS is the floor, not the ceiling
Most teams assume Shopify POS is something you configure. It is, but it is also something you can genuinely build on. Shopify POS is extensible enough to encode a brand's specific retail workflows directly into the app the associate uses, which is what separates a competent POS rollout from a point of sale that feels custom-built for the business. On both Blu Dot and Framebridge, we did exactly that, end to end.
What you can customize: POS UI Extensions
POS UI Extensions let you add native functionality at defined points in the POS app, built with React and Polaris web components and rendered inside the merchant's POS. The extension targets cover the surfaces an associate actually touches:
- The home-screen Smart Grid, where custom tiles (the pos.home.tile.render target) become one-tap shortcuts to bespoke workflows, with tiles that update their label, badge, and enabled state in real time based on cart or device context.
- Home-screen modals and full screens for richer custom flows launched from a tile.
- Product-details and customer-details targets, to add actions and information to the screens associates use mid-sale.
- Post-purchase actions, for what happens after checkout.
Those extensions are backed by POS platform APIs: a Cart API to read and modify line items, discounts, and properties with real-time updates; a Customer API; a Print API that triggers the native print dialog for branded documents; plus barcode scanner, navigation, and toast APIs. The full surface is documented in Shopify's POS UI Extensions reference.
Shopify Functions on the floor
Customization is not only UI. Shopify Functions let you encode business logic, custom discounts, payment customizations, and delivery and pickup rules, natively into the platform, and that logic applies in person as well as online. For retailers whose pricing or fulfillment rules are anything but standard, Functions are how those rules live in Shopify rather than in fragile workarounds bolted on around it.
What we built for Blu Dot and Framebridge
These two builds show the range of what a custom Shopify POS can do.
- Blu Dot: trade pricing and NET30 terms on the showroom floor, product-specific handling and freight fees applied automatically, and on-the-spot PDF quote generation from POS, with line-level detail carried cleanly from cart to quote to order, plus freight-aware checkout for big-ticket goods.
- Framebridge: a custom in-store framing tool built on the Shopify POS iPad, where an associate designs and renders a frame with the customer present and saves it to their account, plus a persistent cart that follows a project across web, app, and the studio floor, and in-store drop-off for pieces entering the framing process.
- On both, the customization spanned POS UI Extensions, Functions, and the platform APIs above, so the point of sale matched the business rather than the business bending to the point of sale.
Migrating to POS without disrupting the floor
A POS migration touches hardware, people, and live trade, so it is sequenced carefully: specify and configure terminals and peripherals, unify online and in-store inventory and customer data, set role-based staff permissions, train associates, and roll out store by store rather than flipping the whole fleet at once. See our Shopify POS practice for how we scope it.