Error tolerance
Definition: There should be a good error dialogue explaining to the user what went wrong, contains concrete instructions and gives more information.
Spotify: Mainly, Spotify tells you about network errors. When typing incorrectly, Spotify gives suggestions anyway. Spotify informs when music is not available in your region.
Instagram stories: It warns you when the story did not download properly. It warns you when music is not available. It warns you that you cannot share private accounts.
Trainex on the phone: N/A
BVG: Informs you when address placement is wrong.
New example: Google search correction "Did you mean?" Click on link at the bottom [1]
