How SMARTS works, what POS middleware is, and why it matters for retail.
It is the software layer that connects a retailer’s cash register to every digital service that runs through it — parcels, promotions, gift cards, loyalty, mobile top-ups. Instead of building a separate integration for each service, the middleware provides a single connection point for all of them. SMARTS is purpose-built for this role, live across 2,000+ convenience retail stores in Switzerland, Germany, and Luxembourg.
A retail integration layer abstracts the protocol differences between a POS system and its external service providers — carriers, promotion platforms, gift card networks, payment processors. Without one, each new service requires a separate POS certification, a separate data format, and a separate reconciliation process. SMARTS acts as this layer: one POS integration handles 70+ brands, and adding a new service provider requires zero changes at the register.
A POS system handles the core transaction — scanning items, calculating totals, processing payment. POS middleware handles everything else that flows through the register: parcel pickups and returns, manufacturer-funded promotions, gift card activation, loyalty rewards, mobile top-ups. The POS handles the register. The middleware handles everything that flows through it.
SMARTS Gateway unifies all carriers into a single workflow at the register: one scan, one screen, one reconciliation — regardless of carrier. Without it, store staff switch between separate systems for each carrier (DHL, DPD, UPS, Swiss Post, and others), each with its own scanning protocol and reconciliation process. Live today in 2,000+ stores across five carriers.
Manufacturer-funded promotions (where tobacco and FMCG manufacturers fund discounts on their products) require real-time basket validation at the register. The promotion engine checks what’s in the basket, verifies eligibility against campaign rules, applies the correct discount, and reconciles the funding back to the manufacturer — all before the receipt prints. SMARTS Boost does this in real time at the register — 201 active promotion schemes running today across airport kiosks, train stations, and city shops.
Building in-house means you own every carrier API, every payment connection, every promotion engine — and every breaking change that comes with them. A carrier updates their API? That’s your sprint. New service provider? That’s your build. You need a dedicated team with deep retail-ops knowledge and a release cycle independent from your POS vendor. SMARTS provides this as a ready-built platform. When a service provider releases an update, we handle the integration and roll it out to all 2,000+ connected stores — no POS re-certification, no retailer-side engineering work.