After each call attempt completes, the system sends a POST request to your webhook URL with the attempt result. Configure the webhook URL in the campaign’s app_config.webhook_config.
Payload schema
ID of the agent or workflow app
Unique identifier for this call attempt
Campaign this attempt belongs to
Cohort this attempt belongs to
Whether the call connected. One of: connected, busy, no_answer, failed
Outcome of the call. One of: completed, partial, failed
Next action for the retry engine (retry, reschedule), or null if terminal
Reason for failure, if applicable
Unique identifier for the user (from cohort transformation config)
Phone number of the user in E.164 format
Phone number used by the agent for the call
Call duration in seconds, or null if the call did not connect
Unique interaction ID for retrieving transcripts and recordings, or null if the call did not connect
Which attempt this is (1 = first attempt, 2 = first retry, etc.)
Timestamp when the call was executed (ISO 8601)
Agent variables passed to the call from the cohort
Agent variables at the end of the conversation, or null if the call did not connect
Custom metadata from the webhook configuration
Examples
Connected attempt
{
"app_id": "my-agent-app",
"app_version": 1,
"attempt_id": "019d392a-4f5a-7db3-904a-6ecebb9aac96",
"campaign_id": "welcome-campaign-2026",
"cohort_id": "cohort-batch-01",
"connectivity_status": "connected",
"completion_status": "completed",
"next_action_status": null,
"failure_reason": null,
"user_identifier": "user-1001",
"user_phone_number": "+919876543210",
"agent_phone_number": "+91804XXXXXXX",
"duration": 45.2,
"interaction_id": "20260329/a1b2c3d4-10:30:00-e5f6a7b8",
"final_agent_variables": {
"payment_confirmed": "yes",
"amount": "1500"
},
"retry_attempt": 1,
"executed_at": "2026-03-29T10:30:45.123456Z",
"initial_agent_variables": {
"customer_name": "Rahul Kumar",
"outstanding_amount": "1500",
"due_date": "2026-04-01"
},
"metadata": null
}
Not connected attempt
{
"app_id": "my-agent-app",
"app_version": 1,
"attempt_id": "019d392a-11c6-72bd-8eb7-c37e84bbd1f3",
"campaign_id": "welcome-campaign-2026",
"cohort_id": "cohort-batch-01",
"connectivity_status": "failed",
"completion_status": "failed",
"next_action_status": "retry",
"failure_reason": "number_unreachable",
"user_identifier": "user-1002",
"user_phone_number": "+919876543211",
"agent_phone_number": "+91804XXXXXXX",
"duration": null,
"interaction_id": null,
"final_agent_variables": null,
"retry_attempt": 1,
"executed_at": "2026-03-29T10:40:26.426940Z",
"initial_agent_variables": {
"customer_name": "Priya Sharma",
"outstanding_amount": "2500",
"due_date": "2026-04-01"
},
"metadata": null
}