There are many topics with this error message. I read them all, and I believe my use case is unique enough to warrant creating a new one. Thanks!
“Another site is already using this domain” error trying to set custom domain “v1.kylegach.com” on site “kylegach”
Both sites and domains are mine. “v1-kylegach” is my old site. It fails builds and I don’t want to mess with fixing it, so I used the drag-and-drop, manual deploy feature to publish one final update.
Because of the need to manual deploy, I couldn’t use branch subdomains to differentiate between the old and new site. (At least, I think my understanding there is correct.) Instead, I made an entirely new site (attached to a new repo), “kylegach”.
Now I wish to redirect some paths from the new site to the old (to prevent link rot). I finally discovered (it’s not terribly obvious) that you can only redirect among domains associated with the site, so I tried to add the old site’s domain, “v1.kylegach.com”, as a domain alias to the new site, “kylegach”. Doing so threw the error above.
Is there a path forward here?