Just a heads up, if you are migrating your site from HTTP to HTTPS and you have Parameter Handling set up in Google Search Console, make sure that when you do migrate to HTTPS, you transfer those parameter handling set up as well.
So make sure to set up a new Google Search Console verified property for your HTTPS site, leave the HTTP version alone. Then set up the parameter handling in there as well.
Here is the PSA from John Mueller on Google on this topic:
You need to transfer the parameter handling settings if you move to HTTPS (that’s in our docs). Usually a sign that you’re internally linking w/parameters a lot too.
— John ☆.o(≧▽≦)o.☆ (@JohnMu) November 21, 2017
The complexity around any site migration, even HTTPS ones, is that there are legacy configurations that you need to document and handle when doing the migration. From URL redirects, to chain redirects, to server configuration, hreflang, structured data and much more including parameter handling, robots.txt, disavows, etc etc.
Forum discussion at Twitter.