Once you have created a brand in your shop, the next step is to associate products with the manufacturer. Follow these instructions.
Associating products with their manufacturer
Go to the administrator panel and the Catalog tab in the left column, then click on Products. A new page lists all of the items available. Choose "Edit" to the right of the product row to access its general information.
In the main tab of the product page, click on the "Add a brand" button. This gives you a dropdown menu that will list all of the brands you have created.
In the left column, click on "Associations". A form allows you to associate the product with categories and specify the brand in the "Manufacturer" field. In the "Associated categories" section, check the parent category and the different sub-categories of the product. Then choose the item's main category from the dropdown list.
Under "Main category" in "Accessories", enter the name of the products that can be sold as accessories for the current product, then enter the manufacturer's name in the "Manufacturer" field. To the right of this field, you can click on the "Create new manufacturer" button to add a new one. To finish, click on "Save" or "Save and stay" to save the changes.