"A sitemap is a file where you provide information about the pages, videos, and other files on your site, and the relationships between them. Search engines like Google read this file to crawl your site more efficiently. A sitemap tells Google which pages and files you think are important in your site, and also provides valuable information about these files. For example, when the page was last updated and any alternate language versions of the page." - Google Search Central
In Limio, whenever a campaign or page is published or unpublished, it will get added to the sitemap.xml.
This file can be accessed at your shop URL /sitemap.xml - for example - limio.shop.com/sitemap.xml. You can add your sitemap to Google Search Console which will help Google with indexation of your pages and campaigns.