Server-side verification
The browser is never trusted for product prices, cart totals or merchant floors.
Give high-intent shoppers a way to ask — without giving away your margin.
See how it works →SECURITY
Private offers should feel seamless to the shopper and predictable to the operator. The security model is built around exactly that boundary.
The browser is never trusted for product prices, cart totals or merchant floors.
Accepted offers use Shopify Draft Order invoices. NegotiaCart never handles card data.
Encrypted secrets, role checks, SSO/MFA support, audit records and bounded request handling.
Rate limits, webhook idempotency, recovery backups and a defined incident process.