Locate the public HTTPS XML feed URL used by Google Merchant Center for Shopify, WooCommerce, and custom stores.
Google Merchant Center ingests a product feed — often an RSS or Atom XML file hosted on HTTPS. FeedScrub needs that same public URL (or a downloaded copy of the XML).
On Shopify, open the Google & YouTube channel or your feed app settings and look for a scheduled feed URL ending in .xml. On WooCommerce, check your Google Listings / product feed plugin for the feed endpoint.
If you cannot find a public URL, export the feed from Merchant Center or your platform and upload the .xml file on FeedScrub. Feeds larger than 4 MB are not supported.