Migrate Classic Sites to New Sites
Migration tools to transition your classic sites will be released in 2018. Both classic and new Sites will continue to be supported during this time. Timelines and instructions regarding the gradual depreciation of classic Sites will be released in 2018. The specific depreciation date will be announced at least one year in advance.
Read More *** Note that the help file is updated indicating that site conversion is or will soon be available, even though many features are still unavailable in New Site
After Migrating you may have to add the custom URL to the migrated site.
- On a computer, open a site in new Google Sites.
- At the top, click More Custom URLs.
- Enter your custom URL.
- Click Assign.