Messaging Channels are a third-party messaging app integrations that let you send and receive messages on multiple channels with the Twilio APIs you already use.Currently, WhatsApp Business Platform (GA), Facebook Messenger (Public Beta) and Google Business Messages (Private Beta) are supported.
You may use Facebook Messenger and WhatsApp through Twilio Programmable Messaging and Conversations. Google Business Messages is only available through the Conversations API. All channels are compatible with Twilio Flex.
GBM is being made available gradually depending as access opens up – you may request access here.