UK and EU merchants on Trust Payments face a specific gap: Odoo ships payment providers for Stripe, Adyen, Mollie, PayPal and a handful of others, but there is no first-party Trust Payments (formerly Secure Trading) provider in payment core. Teams end up either routing customers off-Odoo to a hosted checkout — losing order attribution and forcing manual reconciliation — or paying twice for a PSP they already have a contract and negotiated MID rates with. Under PSD2, a card flow that does not implement 3DS2 and Strong Customer Authentication (SCA) correctly gets soft-declined or exposes the merchant to liability shift, so a half-built integration is worse than none.

We build a dedicated Odoo payment provider (payment.provider with code = 'trustpayments') that plugs Trust Payments directly into the standard Odoo checkout, so the flow behaves exactly like a native provider: it appears on the eCommerce checkout and the "Pay Now" links on customer invoices and sales orders, writes proper payment.transaction records, and confirms the order through Odoo's own post-processing. The module implements the Trust Payments hosted payment page using their JWT request model — the transaction request (site reference, amount, currency, order reference, customer fields) is assembled server-side, signed as a JWT with your secret so nothing sensitive is tamperable in the browser, and the shopper is redirected to the PCI-scoped hosted page where card data and the 3DS2 challenge are handled entirely by Trust Payments. Card details never touch your Odoo server, keeping you in SAQ-A scope.

Technically it is a clean, upgrade-safe addon: a __manifest__.py depending on payment (and website_sale/account where those flows are in scope), a provider model extending payment.provider with the trustpayments-specific credential fields (site reference, JWT username, secret/API key) stored encrypted, and a controller exposing the return and webhook routes. Inbound status notifications are verified (signature/response-hash check against your secret), matched to the originating payment.transaction by order reference, and drive the transaction state machine — _set_done, _set_pending, _set_error — so a settled auth reconciles the linked invoice automatically instead of by hand. Refunds are wired through Odoo's native refund support (support_refund) so a credit note or a refund action calls back to Trust Payments; multi-currency is honoured by passing the order currency and minor-unit amount correctly per ISO 4217. Access is locked down with ir.model.access.csv plus record rules, and every gateway request/response is logged for audit and dispute evidence.

Because this is BUILD-TO-ORDER, it is not an instant apps.odoo.com download — ECOSIRE builds it against your exact Odoo edition and version. After a short scoping call we confirm your Trust Payments configuration (site reference, MID/currencies, 3DS2 profile, capture mode), agree the flows in scope (eCommerce, invoice pay-links, subscriptions/tokenisation if needed), then develop, install on your staging, run UAT against Trust Payments test credentials, and go live. Typical delivery is one working week from confirmed scope. You receive the full source for your version and a post-go-live support window; nothing here is a stock listing or a pre-recorded demo.