Why am I asked to accept some permissions on installation?
The Shopify Platform has a permission system for Shopify apps. That way, the Shopify Platform controls which information from your store apps can access or modify.
Unfortunately, the permission system is coarse-grained and apps have to ask for a full chunk of information in order to get something particular. For example, if an app wants to know the number of orders in your store, it has to ask for the read_orders permission, what also allows to read the detail of the orders or the order customer data.
The following are the permissions required by Frequently Bought Together, as displayed by Shopify in the app installation page:
Let us explain in detail the meaning of each permission listed.
View Shopify account data
We need to know your Shopify plan, your contact email address and your store currency. This is a read-only permission, our app cannot modify any shop data.
As the product information (product name, price, picture...) is displayed in the app widget, we must read the product information from Shopify. This is a read-only permission, our app cannot modify product data at all.
We read all your previous orders to generate automatic recommendations. Please note that we only read the product ids from your orders (a product id is a number like 4850392033485). We do not read any customer data or any other order information. This is a read-only permission, so our app cannot modify your orders.
Manage your Online store
Manage other data
This generic section appears because our app asks for permissions to create discount codes to be able to offer bundle discounts to your customers, if you choose to configure the app that way.