Not able to personalized any new or change my different group text message notifications... Why was this taking away. Love that I could set a notification sound for the group messages and have separate notification for the individual messages.. please add back
So, I was fooling with this just now on my Note 10+...
Try placing the audio file in some other folder like Downloads initially, and then MOVE the file into the Notifications folder USING THE SAMSUNG "MY FILES" APP.
It seems like it is very important to use Samsung's file manager app to move the audio file into the Notifications folder, or else it does not register with the system.