## MedplumClientOptions.extendedMode property [​](/content/docs/sdk/core.medplumclientoptions.extendedmode#medplumclientoptionsextendedmode-property/index.html)

Optional flag to enable or disable Medplum extended mode.

Medplum extended mode includes a few non-standard FHIR properties such as meta.author and meta.project.

Default is true.

**Signature:**

```typescript
extendedMode?: boolean;
```

- [MedplumClientOptions.extendedMode property](/content/docs/sdk/core.medplumclientoptions.extendedmode#medplumclientoptionsextendedmode-property/index.html)