Hi,

Odoo's PoS doesn't inherently enforce a minimum value for manually entered gift voucher amounts, even if defined on the product. The system allows any numerical input, as its primary focus is on gift card creation and redemption, not strict client-side validation during sales. To prevent users from entering lower amounts, a customization is required, typically involving JavaScript modifications to the PoS interface for real-time validation. For Odoo Online users, this means contacting an Odoo Partner or Support, as direct code changes aren't possible.