Bookmarks don't open in all email clients
|Knowledge Article Number||000213663|
Bookmark links allow subscribers to click a link and jump to a different section within the email. Each email client reads the Bookmark formatting differently and some email clients cannot render the Bookmark link in Marketing Cloud email.
Some email clients can render Bookmarks, but may have issues if the Bookmark name has spaces or special characters. It's recommended that you exclude special characters or spaces when you enter the name of the Bookmark in the Bookmark Name field.