Three kinds of products may be present within your product catalogue.
- Parent products: this refers to your product reference. It has no variation notion. This product is not real: it cannot be bought. One parent product may be linked to many child products.
- Child products: this refers to products that may be bought. The child product has all of the variation notions, which differentiate it from other child products. A child product is linked to only one parent product.
- Simple products: Each simple product is different from all of the other products within the catalogue. The product that it represents may be bought.
More details about the different kind of products in the guide "Product catalogue content".