Built for Retail Software

Retail payment processing software
for every lane

CSIPay is the embedded payments platform for retail software within the Constellation ecosystem. In store, online, and card on file payments, all running inside your product.

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The Challenge

Retail is won at the register line and reconciled at night.

A retailer's worst moment is a line that stops moving. Peak season traffic means every lane open, associates stepping into the line with handheld devices for mobile line busting, and an online channel selling from the same inventory all day. Omnichannel checkout is not a buzzword to the store manager. It is the practical question of whether an online order can be returned at the counter to the original card without a workaround.

When in store and online payments run on different processors, that question gets ugly: two settlement files, two support lines, and returns that cross systems. CSIPay embeds one payment layer in your retail software, so every lane, device, and channel settles as one business and reports as one day.

What You Get

Everything retail software needs across lanes and channels.

Register and lane checkout

Fast card present payment at every register, built natively into your POS.

Mobile line busting

Associates check customers out in line with handheld devices on the same payment layer as the registers.

Online orders, same platform

eCommerce sales run through the same embedded layer as the stores, settled together.

Cross channel returns

Refund an online order at the counter to the original card, recorded against the original sale.

Security built in

Every lane, device, and online sale is protected to PCI DSS Level 1.

Revenue for your platform

Retail volume becomes platform revenue through our partnership and PayFac as a Service models.

PCI DSS.Level 1 certified
99.9%Uptime SLA
4,000+Merchants
US & CanadaCoverage
Why CSIPay

One partner across every channel.

CSIPay is the embedded payments platform for Constellation Software and Jonas Group companies, so retail platforms in the ecosystem run store and online payments through a partner built for vertical software rather than stitched together processors. The relationship, and the revenue, stay inside the ecosystem.

Peak trading is the stress test, and the platform is built for it: more than 4,000 merchants, PCI DSS Level 1 certification, and a 99.9% uptime SLA, with US and Canada coverage including card not present payments in Canada, so the online channel runs on both sides of the border.

What that means for you

  • Built for retail software within Constellation and Jonas Group
  • One partner for registers, handhelds, and online checkout
  • PCI DSS Level 1 across every lane, with a 99.9% uptime SLA
  • US and Canada coverage, in store and card not present online
How It Works

Three steps to every lane live.

Integrate the payment layer

Embed CSIPay with our APIs and registers, handhelds, and online checkout run natively in your software.

Onboard your retailers

Merchants get underwritten and ringing sales quickly, with compliance carried by CSIPay.

Grow with every basket

In store and online volume builds your processing share together. When you grow, we grow.

FAQ

Retail payment questions.

What is omnichannel checkout in retail software?

It means store registers, handheld devices, and the online cart all run on one payment layer with one settlement, so a customer can buy in any channel and the retailer reconciles one business, not several. CSIPay provides that layer embedded inside your retail software.

How does mobile line busting work?

Associates carry handheld devices and check customers out while they wait in line, and those payments settle with the registers, so peak traffic moves faster without creating a separate reporting pile.

Can an online purchase be returned in the store?

Yes. A cross channel return refunds the original card and records against the original online sale, so inventory and reporting stay accurate across channels.

What does a retail platform gain from embedding payments?

A single settlement story to sell. Retailers pick software that removes the seams between store and online, and a platform with CSIPay embedded offers one payment layer, one support path, and processing revenue that comes back to the platform.

Sell every channel as one system.

Embed retail payment processing in the software your merchants run their stores on. When you grow, we grow.

Request Demo

Let's build retail payments together

Bring embedded payments to the retail software your customers rely on. When you grow, we grow.