Send Message v2

{
    "appid": "<channel asset specific App ID available in Assets page>", //This is required only for Push, In-App, Messenger, WhatsApp, and Apple Messages for Business
    "channel": "<channel name - v2 API currently supports sms, email and rcs",
    "from": "<from address for the message, for SMS this will be a senderID, for email the sender address and for all OTT channels it will be appId available on the UI>",
    "to": [
        {
            "msisdn/email": [
                "single/multiple destination objects of the same type" //MSISDN i.e., phone numbers in E.164 format
            ],
            "correlationId": "<correlationId for this array of destination objects>",
            "substitutions": {
                "parameter1": "<substitutions for this array of destination objects> ",
                "parametern": "<substitutions for this array of destination objects> "
            }
        },
        // Pass multiple objects in a single destination array for bulk messaging
        // Pass one object in each destination array for personalized messaging		
        {
            "msisdn/email": [
                "single/multiple destination objects of the same type"
            ],
            "correlationId": "<correlationId for this array of destination objects>",
            "substitutions": {
                "parameter1": "<substitutions for this array of destination objects> ",
                "parametern": "<substitutions for this array of destination objects> "
            }
        }
    ],
    // Global substitutions
    "substitutions": {
        "parameterx": "<global replaceable parameters, destination level parameters take precendence",
    },
    // Message scheduling
    "sendAt": "{{TimeinUTC}}",
    //max 7 days from current time
    "expireAt": "{{TimeinUTC}}", //Either(expireAt/validity)one can be passed.If both are provided then you will receive a 400 Bad request.
    "validity": "time period in seconds", //For e.g., 60 for 60 seconds
    // Channel specific message options
    "options": {
		object(smsOptions)||object(emailOptions)||Object(rcsOptions)
    },
    // Call-backs
    "callbackData": "<notify data>",
    "notifyUrl": "https://notify.example.com",
    "requestedReceipts": [
        "DELIVERED",
        "READ"
    ],
    // Union field message can be only one of content or template
    "content": {
    object(smsMessage)||object(emailMessage)||object(rcsMessage)
    },
    "template": {
        "id": "<unique template ID fom the UI"
    }
    //Optional object if you want to use Contact Policy 
    "contactPolicy": {
             “contactPolicyGroup” : "xKa4xfM3S_a9bP98ryCw8w", //the GroupID to be applied. Required if any of the following options are included and set to true

             “channelCheckConsent” : true, //optional, assumed false, set to true to require opt-in before sending the message,“channelCheckConsent” or “channelApplyFrequencyCap” either of the parameter should be “true” 

            “channelApplyFrequencyCap” : true //optional, assumed false, set to true to enforce group frequency cap for that channel,“channelCheckConsent” or “channelApplyFrequencyCap” either of the parameter should be “true” 
    }
}

header
{
  "alg": HS256,
}
claims
{
  "iss": <Service ID>,
  "iat": <issued at unix-timestamp (in seconds)>
}