Customize your options when promoting subsites.
Follow steps 1 to 6 in the walkthrough to get to the options screen.
Note: When promoting multiple subsites, you can expand them in the list to modify their individual options.
New site name and New site address (URL)
Modify these fields to change the name and URL of your new site collection (the title and URL of the original site will remain unchanged if you don't delete it).
New Site Template
You can change the site template of the new site collection.
Note: When promoting a subsite with a Communication site template, your classic home page will be used, and the publishing feature cannot be activated in the new site collection. You may have to manually create a new home page and adjust some elements to take full advantage of the modern template.
You can decide to add or remove administrators. Note that you must have at least one valid administrator, and you can add as many as SharePoint allows you to.
When promoting with the modern Team site template (Office 365 Group) the default administrator list will include administrators from the parent site collection, and the site owners of the subsite.
Select what you want to do with the original subsite.
- Keep original subsite as is: Promote the subsite as a new site collection, and keep the original.
- Delete the subsite after a successful promote process: Promote the subsite as a new site collection, and delete the original subsite after it's been copied (if there is any error on this subsite or the promote job is canceled, the delete operation will not occur).