curl -X POST https://api.tapace.lk/v1/passes/pass_7hGk2LmQ9xVt4RnB8cYe/void \
  -H "Authorization: Bearer $TAPACE_API_KEY" \
  -H "Idempotency-Key: 9a2c7e1b-4f3d-4b8a-8e6c-2d1f5a9b3c70"

{
  "object": "pass",
  "id": "pass_7hGk2LmQ9xVt4RnB8cYe",
  "status": "voided",
  "voidedAt": "2026-10-13T12:00:00.000Z"
}

{
  "error": {
    "type": "conflict_error",
    "message": "This pass is already voided."
  },
  "requestId": "req_8f3a2c1d9e7b6a54"
}