Cross progression

So I play diablo 4 on pc then I read about cross progression which is great I have a ps4 so I bought my second copy of Diablo 4 for my ps4 so I can play when I travel my psn account is linked to my battle.net account but I can’t see my character’s is there something I need to do that I don’t know about

Go to Battle.net and check your profile. Check under connections to make sure your psn account shows up as linked.