Most teams hit the same wall as they scale on Odoo: approvals live in too many places. Odoo ships genuine approval touchpoints — purchase agreements, expense validation, time-off officer sign-off, and the Enterprise approvals app for internal requests — but each is siloed to its own model, each carries its own rules, and none give you one consistent, auditable engine that spans sales orders, vendor bills, journal entries, custom project milestones, or your own bespoke models. The moment you need "any PO over $10k routes to the department head, then finance, then the CFO, but skips the CFO under $50k," or "changing a customer's credit limit needs two approvers from different teams," native Odoo runs out of road. People start approving over email and chat, the mail.thread chatter becomes the only record, and audit season turns into archaeology.

Approval Workflow Advanced is a build-to-order Odoo module that ECOSIRE designs, builds, and installs for your specific processes. Technically, it introduces a reusable approval engine layered onto Odoo's ORM: a configurable approval.workflow definition with ordered approval.step lines, each step carrying approver resolution (a specific res.users, a res.groups role, the dynamic manager-of-requester, or a domain-selected set), plus sequential/parallel/quorum semantics and optional conditional routing evaluated against the source record. An approval.request.mixin inherited into any target model — standard or custom — adds an approval_state selection field (draft/pending/approved/refused/cancelled), a computed next_approver_ids via @api.depends, and guard methods that block the downstream action (confirming, posting, validating) until the required signatures are captured.

Around that core we build the operator experience: approval.request records with a full decision audit trail (who, when, on which step, with comments), threshold and condition rules expressed as stored domains rather than hard-coded if branches, and escalation timers wired through Odoo's scheduled ir.cron so a stalled approval reminds or auto-escalates after N hours. Approvers act from a dedicated OWL/kanban dashboard, from the chatter activity, or via email; every state change writes to mail.thread for traceability. We enforce access with ir.model.access.csv and record rules so a user only ever sees the requests they raise or must decide, expose QWeb approval certificates for print/PDF, and surface the whole engine over Odoo's XML-RPC/JSON-RPC API so upstream systems can raise and query approvals programmatically. It is delivered clean across Odoo 17.0, 18.0, and 19.0, works on Community and Enterprise, and is designed so Enterprise-only dependencies are never assumed unless your edition already has them.

Because this is made to order, delivery follows a clear path: a scoping call to map your real approval matrices and target models, a fixed written quote, then a build on a staging copy of your database with UAT before anything touches production, followed by installation and a support window. Typical delivery is 2–4 weeks from confirmed scope. Pricing starts from $299 (indicative, single-company base scope); multi-company routing, deep localization of approval rules, integrations with external systems over the RPC API, and larger data-migration volume increase the quoted scope.