Tl;dr:
Whenever a deep link with the same target as the currently opened chat is displayed, meaning that the bot sends a link to itself with start parameters, the client app must know to execute this link directly, without showing a big START button beforehand.
👉 Why deep-linked URLs must /start immediately
Tl;dr: Whenever a deep link with the same target as the currently opened chat is displayed, meaning that the bot sends a link to itself with start parameters, the client app must know to execute this link directly, without showing a big START button beforehand.