<!--
{
  "availability" : [
    "iOS: 26.0.0 -",
    "iPadOS: 26.0.0 -",
    "macCatalyst: -"
  ],
  "documentType" : "symbol",
  "framework" : "IdentityDocumentServices",
  "identifier" : "/documentation/IdentityDocumentServices/IdentityDocumentRegistration/documentIdentifier",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "IdentityDocumentServices"
    ],
    "preciseIdentifier" : "s:24IdentityDocumentServices0aB12RegistrationP18documentIdentifierSSvp"
  },
  "title" : "documentIdentifier"
}
-->

# documentIdentifier

An identifier that uniquely refers to the required document.

```
var documentIdentifier: String { get }
```

## Discussion

Use this identifier to link the registration to the stored document in your app.

---

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