I have submitted around 10 sitemaps in search console. Each sitemap pertains to a different section of the site covering over 100 urls each. The reason for so many sitemaps is just easy administration and debugging.
All the sitemaps have been processed and most of the URLs have been indexed already. Now I have a requirement to reorganize sitemaps, deleting few, merging few, etc. Is it ok to delete the existing sitemaps? Will it have any effect on already indexed pages?