To set minimum and maximum product restrictions, go to WooCommerce. Under the WooCommerce section, you will find a tab, Min-Max quantities and there you will find General Setting.
In the General Settings, you will see fields to set minimum and maximum product quantity. Simply put the minimum-maximum threshold for your product and you are all set to go.
Similar to the Minimum Maximum Product quantity, you can also set a limit to the price. Just below the Minimum Maximum product Quantity options, you can find the fields for the price setting.
Step Count Settings
When customers want to purchase a product, the minimum quantity of the product will be shown on the single product page and the cart page by default. If the customer intends to increase the product quantity from the product page or in the cart, it will increase collectively.
For example, If a product has the minimum quantity of 5, the maximum quantity of 20, and the ‘Quantity group of’ is set to 5; a customer will see the minimum quantity of 5 in the product and cart page by default. Increasing the quantity will use step count in this case, such as 5, 10, 15, and 20, or vice versa. But step count will not work if the minimum quantity and the maximum quantity are not divisible by the number provided in the ‘Quantity group of’ field.
NB: The minimum-maximum quantity and price restriction works for each and every product storewide.