POS Zero Price Block

What it does

A product saved before anyone set a price sells for nothing, and a mistyped discount sends a line negative. Neither stops the sale, and neither surfaces until somebody reconciles the till and finds revenue missing with no way to tell which sale caused it.

POS Zero Price Block refuses those lines at the counter. The offending line is highlighted the moment it enters the cart, and payment is refused with the products at fault named, so the cashier knows what to fix rather than simply being told no.

It then checks again on the server order sync path. That second check is the point: a browser side rule cannot see an order created while the point of sale was offline, and those orders reach the database later, long after the customer has left.

- Two independent switches. Block zero priced lines, block negative priced lines, or both. - Set per point of sale. A till that hands out zero priced samples can still refuse negative lines, and different registers can behave differently. - Enforced on the server too. Offline orders are inspected when they sync, not just at the till. - Offline sales are flagged, never destroyed. The goods have already changed hands, so the sale is recorded and marked rather than refused, and a Blocked Price Line filter shows managers exactly what got through. - Combo and loyalty safe. Combo parent lines sit at zero by Odoo's own design and loyalty rewards are negative by construction. Both are exempt, so nothing legitimate is blocked. - Currency aware. Prices are compared against the point of sale currency rounding rather than a raw float, so rounding artefacts never trigger it.

Who it's for

Retailers and hospitality operators whose catalogue changes often enough that products occasionally reach the till without a price, and anyone running tills that work offline, where a browser-only check leaves a real gap.