Send SMS Via Flow

Parameter Description
authkey * Login authentication key (this key is unique for every user)
route * If your operator supports multiple routes then give one route name. Eg: route=1 for promotional, route=4 for transactional SMS.
template_id * Post verified template id like : Q2gvMEZWK3VBZWNubHRScDlJZXpjUT09
recipients * It contains the URL encoded message content to send
schtime It contains scheduled date and time ("scheduledatetime": "2020-03-02 17:45:00",)
flash post 0 or 1