In short, a product is an item that you sell to your customers. Products can be either produced in your workshop or purchased directly from suppliers for resale. Creating a product enables you to sell it with Sales Orders, make it with Manufacturing Orders, buy it with Purchase Orders, add it to the Product Recipe of another product (subassembly), and keep track of its inventory level.
One product can have multiple variants (e.g. color, size). If you have not enabled multiple variants for a product, then the product is considered to have a single variant.
Product card also includes a variant code. If multiple variants are not enabled, then there is only a single variant code. If a product has multiple variants, then each variant has a unique code.
Product examples: Table, Chair
Notice that attributes like size and color are not used in the product name. We recommend handling those attributes through our variants feature.
In Katana, subassemblies are products, not materials. Each product can be a subassembly and also sold to customers simultaneously. There is no difference between products and subassemblies in Katana. Both are included in the product list and have exactly the same characteristics (including a Product Recipe and Production Operations).
Products for resale
For each product, you can choose whether you make it, buy it, or both. If you choose to enable the option "I buy this product", then you can start adding those products directly to Purchase Orders to purchase them from suppliers.