After registration to direct the user to his dynamic site (resolved)

Since you are saving the data into the dynamic page, you can go to your database, find the field ID of the prefix (e.g. “link-1-title”)

Then you can use the dynamic page prefix to redirect user.

wixLocation.to(item[link-1-title])

Don’t use item.link-1-title, cuz you cannot select like this.