Odoo Enterprise ships WhatsApp; Odoo Community does not — and upgrading an entire fleet to Enterprise just to text a customer is an expensive way to solve a small problem. This is a build-to-order module that ECOSIRE designs, builds, installs and supports for you, bringing full two-way WhatsApp Business messaging to Odoo Community 17, 18 and 19 without any Enterprise licence.

Under the hood it is a proper Odoo addon, not a fragile script. We connect directly to the Meta WhatsApp Cloud API (your own WhatsApp Business Account and phone number, your own message credits), store credentials in encrypted config parameters, and expose messaging as a first-class Odoo capability. A new mail.thread-style widget sits on the records you already work in — res.partner, sale.order, account.move, crm.lead, project.task, helpdesk tickets — so your team sends and reads WhatsApp right where the customer context lives, with the full conversation logged in the chatter against the record.

Incoming replies are captured through a secure Cloud API webhook controller and threaded back onto the matching record by phone number, so nothing gets lost in a personal phone. Outbound sending uses approved Meta message templates for anything outside the 24-hour service window (order confirmations, invoice-due reminders, quotation follow-ups, delivery updates), and free-form session messages inside it. We wire templates to Odoo events with automated actions and server actions — e.g. fire a "quotation sent" template when a sale.order moves to state 'sent', or an "invoice reminder" when account.move crosses its due date — using standard @api.depends compute logic and base.automation triggers.

Because it is your module on your database, everything is governed by Odoo's own security model: ir.model.access.csv rules and record rules control who can see and send messages, group-based access separates agents from managers, and every send is attributed to the Odoo user who triggered it. Views are delivered as clean XML with OWL components for the live chat panel, and message logs render in list, form and kanban. We also expose the send action over XML-RPC / JSON-RPC so your other systems can trigger WhatsApp through Odoo.

ECOSIRE handles the entire lifecycle: scoping your exact records and templates, provisioning against your Meta Cloud API app, building the module, installing it on your server or Odoo.sh, migrating your template set, training your team, and standing behind it with a support window. Typical delivery is 2-4 weeks from a signed scope and Meta access. This is honest build-to-order work — not an instant apps.odoo.com download — so what you receive fits your process instead of forcing your process into someone else's generic addon.