| 400 | BUSINESS_CONNECTION_NOT_ALLOWED | This method was invoked over a business connection using invokeWithBusinessConnection, but either (1) we're a user, and users cannot invoke methods over a business connection; (2) we're a bot, but business mode was disabled in @botfather or (3); we're a bot, but this method cannot be invoked over a business connection. |
| 400 | USER_BOT_REQUIRED | This method can only be called by a bot. |
| 401 | AUTH_KEY_UNREGISTERED | The specified authorization key is not registered in the system (for example, a PFS temporary key has expired). |
| 403 | USER_BOT_INVALID | User accounts must provide the bot method parameter when calling this method. If there is no such method parameter, this method can only be invoked by bot accounts. |