# Javascript: SignatureSettings.uniqueId Property

> Optional. Application-defined identifier sent with the signing request.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Property
- **Path:** TX Text Control .NET Server > Reference > JavaScript API - Document Viewer > Javascript: SignatureSettings.uniqueId Property
- **152 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/signaturesettings/uniqueid-property/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/signaturesettings/uniqueid-property/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/signaturesettings/uniqueid-property/llms-full.txt

---

### Description

Optional. Application-defined identifier sent with the signing request.

### Syntax

```javascript
<string> SignatureSettings.uniqueId
```

### Examples

The following example demonstrates `signaturesettings.uniqueId` in a practical Document Viewer workflow. Specifies a unique document envelope Id.

```javascript
const signatureSettings = {
    uniqueId: "contract-2026-0042"
};
console.log("unique id:", signatureSettings.uniqueId);
```

---

## Nearby

- **Previous:** [Javascript: SignatureSettings.signerName Property](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/signaturesettings/signername-property/llms-full.txt)
- **Next:** [SignatureSubmitCallback Function](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript-document-viewer/signaturesubmitcallback/llms-full.txt)