snowplow/snowplow-javascript-tracker

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[Home](./index.md) &gt; [@snowplow/node-tracker](./node-tracker.md) &gt; [Tracker](./node-tracker.tracker.md) &gt; [setDomainUserId](./node-tracker.tracker.setdomainuserid.md)

## Tracker.setDomainUserId property

Set the domain user ID

<b>Signature:</b>

```typescript
setDomainUserId: (userId: string) => void;
```