Change the address from https:// to https://www

Hi guys, I currently have mydomainname.com as my primary domain in shopify and I’ve verified everything in the search console, I’ve put the verification in the code for the and I’ve also put the sitemap. Now I would like to set the main domain www. so that https://www. now i wanted to know i delete the old property on search console which was https:// without www and put the new one with https://www in search console. Now I wanted to know if I have to redo the verification again by inserting the meta in the html code and putting the sitemap back. Internal links, robotx etc. will they all be automated? or will I have to redo everything like I said before double-checking the sitemap and putting the piece of code into the html?