Before you generate a product feed for any shopping engine, you must configure the product feed settings for this specific engine.
To configure a product feed:
Go to the Product Feeds page in your store's Admin area (Marketing > Product Feeds).
This opens the list of comparison shopping websites to generate product feeds using the Product Feeds add-on.
Locate the shopping engine to generate a product feed and click on its name. The feed settings page opens.
Adjust the settings related to the feed contents:
Skip products without … category: This setting allows you to specify whether the feed should include only the products with categories assigned from the engine's taxonomy or all products.
Skip disabled products and Skip out-of-stock products: These settings allow you to include or exclude the respective types of products from the feed.
Adjust the settings related to feed structure:
Include variant attributes into product names: This setting applies only to products that have variants. By default, all variants of a product are exported with the same product name. Therefore, product variants will go into the feed with names like "My T-Shirt (Red, Small)," where "My T-Shirt" is the general product name, and Red and Small are the options that this variant has.
Product URL suffix: Enter a suffix for the product links. This allows you to analyze your website statistics in Google Analytics and filter users entering your online store from comparison shopping websites.
Feed file name: Change the feed file name if required
Automatic refresh rate (in hours): Specify the minimum number of hours that your store must wait after updating a feed before updating it automatically once again. To disable the automatic update, set this setting to zero. If you enable this option, make sure that your server is configured to run scheduled X-Cart tasks.
Use the Column Mapping section to specify what product fields and attributes should go into which feed columns.
For example, you can configure it so that the "Brand" attribute goes into the "Manufacturer name" column, and the SKU field goes into the "UPC" column.
Click Submit to save the changes.