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",
"broadcast_message": "Service ID 100005 is registered.",
"contacts": "911234567890",
"uploaded_image1": "Link of media with http or https", //optional
}