Submit a sitemap
To submit a new sitemap for crawling:
Post the sitemap on your site. Requirements:
The sitemap must use one of the acceptable sitemap formats.
The sitemap must be accessible to Googlebot, and must not be blocked by any login requirements.
You must have owner permission on a site in order to submit a sitemap using this tool. If you don't have owner permissions, you can instead reference it from your robots.txt file.
Enter the relative URL to the sitemap on the Sitemaps report and click Submit.
The sitemap should be processed immediately. However, it can take some time to crawl the URLs listed in a sitemap, and it is possible that not all URLs in a sitemap will be crawled, depending on the site size, activity, traffic, and so on.