US Patent 10356567 Multi-channel communication system

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for receiving from a first system information comprising a message and an identifier of a user, selecting a channel from a plurality of different third party communication channels for sending the message based on one or more properties of communications on the channel, determining a channel-specific user identifier for the selected channel based on the identifier of the user, creating a channel-specific message formatted for the selected channel based on the message, and sending the message to the user on the selected channel using the channel-specific user identifier.