# How four merchants sold through one checkout without breaking payments or compliance.

> A single purchase flow across four legal entities, with each seller charging correctly while customers checked out once.

[All work](https://automatics.dev/work/)

CASE STUDY · SERVICES MARKETPLACE

SITUATION

Services sold by several legal entities, and no merchant may charge on behalf of another. The customer still expects one basket and one payment.

WHAT WE BUILT

- Single-flow checkout, from basket through suggestions, summary, and billing to payment.
- Multi-merchant routing: each seller charges through its own Stripe or PayPal, with its own invoices and terms.
- Five money buckets per order; every subscription renewal creates its own order and invoice.
- Concierge mode: agents complete a prepared basket together with the customer.
- Admin catalogue for products, packages, and upsell suggestions.

4

sellers, one basket

−70%

partner onboarding time

1

payment for the customer

Four sellers, one basket: pay-now and pay-later per merchant, totals split by billing rhythm. Partner onboarding time fell 70% once white-label flows were wired into every stage.

STACK

Stripe PayPal Node.js Next.js REST APIs

## Have a bottleneck like this?

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