Senkron hatası: [{
  "error": {
    "code": 400,
    "message": "Request contains an invalid argument.",
    "status": "INVALID_ARGUMENT",
    "details": [
      {
        "@type": "type.googleapis.com/google.ads.googleads.v20.errors.GoogleAdsFailure",
        "errors": [
          {
            "errorCode": {
              "queryError": "REQUESTED_METRICS_FOR_MANAGER"
            },
            "message": "Metrics cannot be requested for a manager account. To retrieve metrics, issue separate requests against each client account under the manager account."
          }
        ],
        "requestId": "xSoASXzNnW3PZobaej89GA"
      }
    ]
  }
}
]