Selecting the quantity of goods or services

To allow customers to choose the quantity on the checkout page, go to <span class="u-richtext-element">Settings</span> ➙ <span class="u-richtext-element">Payment links</span> and enable the <span class="u-richtext-element">Manage quantity</span> option.

After that, when creating a payment link, you can set the minimum and maximum number of units a customer can select, as well as the total quantity available for all customers when paying via this link.

The remaining quantity is shown on the payment link tile. When the stock is depleted (equals zero), the payment link is automatically disabled.

If the total quantity is not set (that is, the customer can select any quantity without limits), an infinity symbol is displayed on the payment link.

Simultaneous purchase of the last item

When multiple customers try to purchase the last remaining items at the same time, the purchase will be successful for the customer who completes the payment first.

For example, if 5 units are left in stock and customer A tries to buy all 5, while at the same time customer B buys 2 units and completes the payment first, customer A will see a message that only 3 units are available.