Atul, I don't believe there is a tool in OutSystems to generate an XML sitemap, but there are tons of tools online that will generate something to get you started. I would recommend taking a look at something like https://www.xml-sitemaps.com/ and then using your favorite text editor to customize the sitemap it comes up with. Regardless of tool, you'll still need to customize and prioritize order of the elements in the map.