You don't have to think about which type of message works with which channel – the Sinch Conversation API transcodes the messages automatically to match the target channel. Easy peasy!
Supported channels
You will find a complete list of the channels supported by the Sinch Conversation API is here.
How to deal with variables across channels
f multiple channels are connected to your Conversation API app, it can be useful to be able to send a specific flow depending on the channel the bot user is on. To do that, you can use the internal.sinchConversationAPI.channelIdentifiervariable.