Optim Feed ‑ Facebook Catalog is a tool designed to streamline the creation of XML feeds using product information from Shopify stores. It is particularly geared towards supporting Facebook Catalogs, with plans to extend support to TikTok Catalogs soon. One of its standout features is that it doesn't automatically connect to Facebook, ensuring that existing feeds remain untouched. The app efficiently handles large-scale operations, supporting stores with up to 100,000 variants and generating feeds in just minutes. Users can customize product titles by incorporating variant details, vendor names, and separators. Additionally, the app allows for filtering feeds to include only specific product collections and mapping up to five custom labels with detailed product information like inventory levels and tags.