Most retail and hospitality teams discover the same gap the hard way: the Point of Sale is where money actually changes hands, yet Odoo out of the box gives nearly every cashier the same power at the register. A junior staffer can apply an unlimited manual discount, reopen a validated order, override a product price, delete a line, or pull cash from the drawer — and by the time it surfaces in an end-of-day report, the shrinkage has already happened. Odoo core does ship a two-tier POS security model (point_of_sale.group_pos_user and point_of_sale.group_pos_manager), but that binary distinction runs out of road quickly: it is essentially store-wide, not per-till or per-role, and it cannot express rules like "this cashier may discount up to 10% but never issue refunds" or "only a shift supervisor may reprint a receipt or change a price."

This is a made-to-order module that ECOSIRE builds specifically for your operation to close that gap. The foundation is Odoo's own security layer used properly: we define granular access groups in the module's security/ folder, wire them through ir.model.access.csv for model-level create/read/write/unlink rights, and add ir.rule record rules so managers only see the sessions, orders and registers that belong to their own store or company. On top of that we extend the POS itself — the OWL-based front-end and the pos.order, pos.session and pos.config server models — so a permission is not just a database ACL but a real gate at the register: buttons are hidden or disabled, an action is blocked, or a manager PIN/override is required before the sale can continue.

Technically, the enforcement lives on both sides of the wire. New boolean and numeric permission fields (for example a per-group maximum discount percentage, a "can refund", "can void line", "can change price", "can open cash drawer" or "can validate session" flag) are declared with fields on the relevant models and exposed through inheriting form views in XML. The POS front-end reads these on session load and enforces them client-side for a smooth cashier experience, while a @api.constrains / server-side check on pos.order validation is the authoritative backstop so nothing can be bypassed by a crafted JSON-RPC call. Sensitive events (an override, a large discount, a manager approval) are written to a lightweight audit log model so you get an accountable trail, and can be surfaced in a QWeb report or an Odoo automated action that emails a supervisor when a threshold is crossed. Everything is packaged as a clean, upgrade-safe module with its own __manifest__.py, versioned for Odoo 17.0, 18.0 or 19.0, and works on both Community and Enterprise (POS restrictions apply the same way; we flag any Enterprise-only touchpoints during scoping).

Because this is build-to-order, delivery starts with a short scoping call to map your roles, tills and the exact operations you want gated, followed by a fixed written quote. We then build against your target Odoo version, deliver and test on a staging database with your real permission matrix (UAT), and only then install on production with a rollback plan. Typical delivery is one working week from confirmed scope, depending on how many roles and edge cases are involved. Pricing starts from $999 (indicative, single-company base scope); multi-company or multi-store rollouts, deep custom permission matrices, and integration with existing loyalty, gift-card or manager-approval workflows increase the quoted scope.