post https://elastic.messangi.me/balerion/v3/messages
Send a whatsapp message
If a WhatsApp user has sent your application a message — whether it’s a reply to one of your outbound messages templates, or they have initiated communication themselves — your application has a 24-hour window to send that user any messages, without using a template. These are known as Session Messages.
Interactive reply button messages allow you to send up to three predefined replies for users to choose from.
For more information, go to the Reply buttons section.