This tutorial is geared for a merchant who is selling Stationery box subscriptions and needs to change the price (increase or raise). These changes shouldn't affect existing subscriptions
What ‘Grandfathered' price means - product price is grandfathered and will not change for existing profiles when orders are created even if the product price changes in the catalog for new customers.
In this example let's imagine you are a stationery merchant. One of the products you are selling is a stationery subscription box.
We want to allow once-a-week, monthly and once in two months subscriptions to this product along with the ability to purchase the same product as a one-off.