Retail and F&B teams lose real money at the counter when the card terminal and the point of sale don't talk to each other. Cashiers key the amount into a standalone PAX or Ingenico device by hand, then mark the order paid in Odoo POS — two separate acts that drift apart. Odoo Community ships no certified in-store card acquiring at all, and while Odoo Enterprise offers a handful of built-in terminal integrations (Stripe Terminal, Adyen, Viva, SIX/Worldline in specific regions), the moment your acquirer, device model, or country falls outside that supported matrix, native runs out of road. You are left with mistyped amounts, no automatic reconciliation between the acquirer batch and Odoo's pos.payment records, and refunds that have to be processed on the terminal separately from the credit note.

ECOSIRE builds a payment connector that binds your specific terminals to Odoo POS as a first-class pos.payment.method. Technically, we extend the POS payment interface — an OWL/JS PaymentInterface subclass on the frontend paired with a pos.payment.method provider and server-side models.Model records that hold terminal identifiers, acquirer credentials, and routing rules. When the cashier hits Validate, the exact order total is pushed to the paired terminal over the vendor path that fits your hardware: Stripe Terminal's server-driven PaymentIntent flow, or PAX/Ingenico via their local LAN/semi-integrated ECR protocol (or a cloud terminal API where the device supports it). The terminal captures tap, chip, or contactless; the authorization result, card brand, last-four, and acquirer reference flow back and are written onto the pos.payment line so the sale and the settlement are a single reconciled fact.

The build covers the operations that break in a manual setup. Refunds are driven from the original POS receipt — we look up the stored acquirer transaction reference and issue a linked refund to the same card rather than a blind new charge, keeping the credit note and the acquirer reversal tied together. Tip adjustment and cashback are handled inline where the acquirer and hardware support them, with the tip posted to the configured account.account and cashback recorded as a cash payout line. Access is locked down through ir.model.access.csv and record rules so terminal credentials and raw transaction logs are visible only to the roles you nominate, and every terminal round-trip is logged for dispute handling. Reconciliation views and an optional QWeb end-of-day settlement report line the acquirer batch up against Odoo's POS session closing, and where you run headless tills or kiosks the same routing is reachable over Odoo's JSON-RPC/XML-RPC API.

Because this is built to order, nothing ships as a blind download. We start with a scoping call to confirm your exact terminal models, acquirer(s), country, and Odoo edition and version (we support 17.0, 18.0 and 19.0, Community or Enterprise), then agree the connection method — semi-integrated ECR, cloud terminal API, or Stripe Terminal server-driven — because that single decision shapes the whole integration. From confirmed scope, typical delivery is one working week: we develop against a staging copy of your database, run UAT on real hardware with test cards, and only then schedule the production cutover with a rollback plan. You receive the full installable source for your version, a git repository handover, and a defined post-go-live support window — no vendor lock, no black box.