Payment Links & Pay-by-Link for Odoo is a build-to-order module that ECOSIRE designs, builds, installs and supports for your database — not an off-the-shelf apps.odoo.com download. It closes the gap between "invoice sent" and "cash received" by letting your team spin up a secure, shareable payment link in one click from any invoice (account.move), sales order or quotation (sale.order), or an ad-hoc charge with no source document at all.

Odoo core can email a portal link, but it is rigid: the amount is fixed to the document total, there is no expiry, no partial-payment control, no per-link gateway choice, and delivery is email-only. This module turns pay-by-link into a first-class workflow. A new ecosire.payment.link model captures the amount, currency, allowed payment providers, expiry datetime, partial-payment flag and a cryptographically strong access token. Server actions and smart buttons wire it onto the invoice and sales-order forms, and an automated action can generate a link the moment an invoice is validated (posted). The link resolves to a hardened public QWeb/website controller route that presents your branded checkout, runs the customer through the selected payment.provider records (Stripe, Adyen, PayPal, Mollie, Razorpay, local gateways, or manual/offline), and returns them to a themed confirmation page.

The reconciliation story is what makes it pay for itself. When a payment.transaction completes, the module registers the account.payment, links it to the originating account.move, and reconciles it against the open receivable — so a paid link updates the invoice's payment status to "In Payment" or "Paid" with zero manual journal work. Partial payments are supported end-to-end: a customer can settle part of a large invoice, the residual is tracked, and the link can stay live until the balance clears. Compute fields with @api.depends keep paid, outstanding and status figures accurate in real time, and every link carries an immutable audit trail (created by, sent channel, opened, paid, expired).

Delivery is omni-channel. Beyond Odoo's native email templates, ECOSIRE integrates SMS (Odoo IAP or your Twilio/gateway) and WhatsApp (Enterprise WhatsApp connector, or a Meta Cloud API integration for Community) so you can push a link to a customer in whichever channel they answer fastest — critical for remote B2B and service billing where the buyer is not in front of a laptop. Security is enforced with ir.model.access.csv groups and record rules so only authorized users mint or void links, tokens are single-purpose and expirable, and the public route is rate-limited and CSRF-safe.

The module is built clean against Odoo's ORM and manifest conventions, ships with tests, and is installable and upgrade-safe on Odoo 17, 18 and 19 (Community or Enterprise — provider availability differs). Because it is build-to-order, ECOSIRE tailors the gateways, branding, channels and reconciliation rules to how your finance team actually works, then hands over documented, maintainable code you own.