How to add role-based pricing for your product samples
When you use the WooCommerce Product Sample, all customers are charged the same price for your sample products.
You can change this by using it with our other plugin, WooCommerce Wholesale Pro. This adds a 'Wholesale sample price' field to the WooCommerce Product Sample plugin settings page. You can use this field to set the price which all your wholesale users will pay for your product samples.