Error Message

{
  "errors": [
    {
      "message": "Invalid push notification service for the external provider.",
      "extensions": {
        "errorType": "VALIDATION",
        "errorDescription": "'service' must belong to 'externalProvider': PINPOINT supports 'GCM', 'APNS' and 'APNS_SANDBOX'; FCM supports 'ANDROID_FCM' and 'IOS_FCM'.",
        "errorCode": "KT-CT-5430"
      }
    }
  ]
}