Approvals in Odoo are scattered. Purchase orders have a confirm button, expenses have their own manager check, sales quotations lean on discount limits, and everything else falls back to base.automation rules that a business user cannot see, edit, or trust. When finance asks for a three-level sign-off that depends on amount thresholds, department, and whether a contract is attached, you are suddenly writing Python @api.constrains, editing ir.model.access.csv, and redeploying. A month later nobody remembers why a record is stuck. Odoo's native Approvals app covers simple linear requests, but it does not model parallel gateways, conditional branches, escalation timers, or a single visual map of how work actually flows. That is where the native platform runs out of road.

We build a BPMN Workflow Designer tailored to your database: a drag-and-drop canvas grounded in BPMN 2.0 notation (user tasks, exclusive and parallel gateways, start and end events, swimlanes) that compiles into real Odoo behaviour. Under the hood it is a proper Odoo module — new bpmn.process, bpmn.process.instance, and bpmn.task models built on models.Model, with an OWL-based diagram editor rendered in the backend and the design persisted as standard BPMN XML on the record. When a modeller draws an approval gate, the designer generates the underlying routing: server actions via ir.actions.server, activity assignments through mail.activity, and a state field whose transitions are driven by the diagram rather than hand-coded if branches.

Because it is generated as a versioned module rather than clicked together in the UI, the workflow logic is auditable and portable. Conditions on gateways compile to safe, sandboxed domain expressions evaluated against the source record, so a branch like "amount over 50,000 and no framework agreement" is stored declaratively, not buried in Python. Every process instance keeps a full audit trail — who approved, when, on which node — surfaced in the chatter through mail.thread and available over the XML-RPC/JSON-RPC API for BI or external systems. Escalation timers use ir.cron and Odoo's activity scheduling so a step that stalls past its SLA reassigns or notifies automatically. Approval matrices are data (res.groups, users, and thresholds), not code, so your team edits routing without a redeploy. QWeb reports can render the full approval history onto the source document for compliance sign-off.

Because this is build-to-order, nothing ships until we agree on scope. We start with a scoping call to map which models the workflows govern (purchases, expenses, sales, custom objects), your approval hierarchy, escalation rules, and Community-vs-Enterprise constraints. We build against your exact Odoo version (17.0, 18.0, or 19.0), validate on a staging copy of your database, and hand over installable source with a git repository. Typical delivery is 2–4 weeks from confirmed scope, depending on the number of workflows and integrations. Pricing starts from $299 (indicative, single-company base scope); multi-company routing, deep integrations with third-party systems, and additional governed models increase the quoted scope.