I have a question concerning the setup of product feed files out of the Shopify system. We will need files for different systems like Pinterest, FB & IG. The API with FB doesn't allow us to add custom attributes to the feeds. So instead of using the API we would like to create our own files with a URL and add additional attributes to the products that will be included in the files as "custom_label_0" etc.
Is this possible out of the system? If yes, what are the steps to get different files with specifications for the different platforms?