After successfully creating a sitemap for a storefront, you must submit the sitemap to main search engines manually.
Register with the Google Sitemaps program and submit your sitemap. This also lets you see some interesting statistics about your site, such as the most used keywords and any spidering problems.
Google checks your sitemap for updates regularly, so you don't need to submit your sitemap more than once.
Although you might produce new sitemaps on a regular schedule, Google only updates its links after requesting the sitemap. If you produce sitemaps more frequently than Google checks for updates, you can notify Google about sitemap updates by pinging their sitemap server.
sitemap_index.xml
file in your
robots.txt
file.