Products vs Product Formats
In TitleLeaf, a "Product" can have one or more "Product Formats". The Product attributes can be found on the "Edit Product" form of the Admin UI or the products ingestion template. The Product Format attributes can be found on the "Edit Product Format" form of the Admin UI or the "product_formats" ingestion template.
If, as a publisher, you release your product in multiple formats simultaneously, it is recommended that you use the "products" template to create a Product and then the “product_formats” template to create all its associated Product Formats.
If, as a publisher, you release your product in only one format, you can consider the products-with-one-format template. It is offered as a convenience method to create/update Product and Product Format attributes via one template/ingestion.
Products List (Admin > Catalog > Products):

Edit Product Form (Admin > Catalog > Products):

Product Formats List (Admin > Catalog > Products > Edit Product):

Edit Product Format Form (Admin > Catalog > Products > Edit Product > Product Formats):
