curl --request GET \
  --url https://api.interchange.io/api/v2/buyer/tasks/{taskId} \
  --header 'Authorization: Bearer <token>'

{
  "task": {
    "taskId": "550e8400-e29b-41d4-a716-446655440000",
    "taskType": "audience_sync",
    "status": "submitted",
    "resourceType": "audience",
    "resourceId": "aud_12345",
    "error": {
      "code": "VALIDATION_ERROR",
      "message": "Invalid budget value",
      "field": "packages[0].targeting",
      "suggestion": "<string>",
      "retryAfter": 123,
      "details": {}
    },
    "response": {},
    "metadata": {},
    "retryAfterSeconds": 30,
    "createdAt": "2026-01-15T10:30:00.000Z",
    "updatedAt": "2026-01-20T14:45:00.000Z"
  }
}