This function is activated with the setting Purchase Limit, under Order / Inquiry in the Purchase tab in the Settings procedure.
Via the Purchase limit button you can enter a purchase limit (amount limit) per order and accumulated, for each user. The purchase limit per order also limits up to which individual order total that the user is allowed to approve orders in the Orders Needing Approval procedure in the Purchase module.
Here you also enter whether the accumulated limit should apply to all orders, per month or per year and who is the authorized signer for the specific user (who should authorize purchases more expensive than the limit allows). The alternative Authorized to change authorized signer allows the user to change the authorized signer. This setting is unchecked by default.
Purchase limit.