Assign a product to a category
1. In Online store settings, click on Catalog and then Categories.
2. Select the category you want to assign a product to.
3. Click on the Category products tab and click Assign Products to Category.
5. Select the products from the list. Click Add products to assign many items at once, or use the Plus icon to add products one at a time.
Assign a product to a category in the product's editing view
1. In Online store settings, click on Catalog and then Products.
2. Select the product you want to edit.
3. Scroll to the bottom of the General page, select Categories and click on Manage Categories.
4. Select the category to which you want to assign the product and save your changes at the top of the page.