> For the complete documentation index, see [llms.txt](https://docs.ep.mburger.cloud/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ep.mburger.cloud/android-docs/audience/untitled-5.md).

# Custom Id

You can set a custom id in order to track/target users with id coming from different platforms.

To set a custom id:

```
MBAudience.setCustomID(context: Context, custom_id: String)
```

To remove it:

```
MBAudience.removeCustomID(context: Context)
```

To retrieve the current saved id:

```
MBAudience.getCustomID()
```