Read this: My Wayspot nomination was accepted, but does not appear in my game(s). Where did it go?
If you would like to give the name of the Wayspot and the location, someone here will be able to explain why you don’t see it. But if you go to the location and go in to the nomination map screen, there is a toggle you can turn on to see accepted Wayspots that are not in Pokemon Go as an exclamation mark (!).