Redirects
What happens to old links when I change a Replo page's URL?
Keep old links working with a redirect when you change a page’s URL on your Replo site.
You change a page’s URL path in Page settings in the Site Builder.
The page is saved at the new URL as unpublished. The old URL stays live until you publish both routes. After that publish, old links 404 unless you add a redirect from the previous path. Page settings reminds you of this when you edit the URL.
More in Redirects.