ACH Routing Number Verification Failure

{
  "data": {
    "ancillary": {
      "participant_unique_id2": "111111111-2222-3333333-4444444444",
      "session_id": "00000000-0000-0000-0000-000000000001",
      "notification_id": "1000001",
      "participant_unique_id1": "22222222-5555-3333333-4444444444"
    },
    "event": {
      "attempt_count": 1,
      "status": "743",
      "max_attempts": 3,
      "client_message": "Invalid routing_number"
    }
  },
  "metadata": {
    "version": "1",
    "topic_description": "This event reports Routing Number Validation (RNV) validation failure on an ACH payment request.",
    "timestamp": 1752031346,
    "topic": "transaction.account.verification.ach.failure.rnv",
    "id": "prod1-123456-abcd-1234-ab12-c123d456e789"
  }
}