Formats are product variations or sub-product. They can be used for example to manage the sizes of clothes or to manage engines with different powers.
The way to import is very similar to the products importation. You can add as many fields as you may need in this level, but there are 2 fields that are required:
- Format reference: Unique ID of the format/size/variation.
- Product reference: Unique ID of the father product.
This is the hierarchy of the database: