<!--
{
  "availability" : [
    "iOS: 18.0.0 -",
    "iPadOS: 18.0.0 -",
    "macCatalyst: 18.0.0 -",
    "tvOS: 18.0.0 -",
    "visionOS: 2.0.0 -",
    "watchOS: 11.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "HomeKit",
  "identifier" : "/documentation/HomeKit/HMCharacteristicPropertyRequiresAuthorizationData",
  "metadataVersion" : "0.1.0",
  "role" : "Global Variable",
  "symbol" : {
    "kind" : "Global Variable",
    "modules" : [
      "HomeKit"
    ],
    "preciseIdentifier" : "c:@HMCharacteristicPropertyRequiresAuthorizationData"
  },
  "title" : "HMCharacteristicPropertyRequiresAuthorizationData"
}
-->

# HMCharacteristicPropertyRequiresAuthorizationData

A variable that specifies that the characteristic requires authorization data to write.

```
let HMCharacteristicPropertyRequiresAuthorizationData: String
```

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)