Ecommerce Categories Sync Odoo App will help you to easily add the product categories to the e-commerce categories. Using this app you can automatically sync with the e-commerce category while you create a new product category. While you linked all products category with the corresponding e-commerce category, that time you can also enable the option 'all product link with ecommerce category' for all products.
Configuration for Sync Ecommerce Category/Product
Goto users and tick "sync ecommerce category/product".
Configuration for Website Category/Product
Goto website configuration setting there is a two different option for sync internal category with ecommerce category as like. 1) eCommerce new Cateogry Sync & 2) eCommerce new Product Sync
Click on Sync Ecommerce Category
Sync Ecommerce Category Wizard
Select "Create all internal category on website" operation then you can see list of categories.
Select Category which you want to Sync in Ecommerce
You can add or remove categories from the list and click save button so all selected categories added in the e-commerce category.
Ecommerce Categories
You can see ecommerce category created from the internal category.
Select "all product link with ecommerce category" operation
When you select second operation then all product link with ecommerce category.
Product Link with Ecommerce Category
You can see product link with ecommerce category.