To Start sending "Session Messages", the first incoming message from the receiver is mandatory else "Ticket Expired" error will be displayed.

URL : https://{{url}}/v5/api/session.php

{
"brodcast_service":"whatsapp_credits",
"template_id" : "session_message",
"schedule_time": "12:46:31",
"contacts": "911234567890",
"uploaded_image1": "Link of media with http or https",

}