---
title: AppPreviewSet.Relationships.AppStoreVersionExperimentTreatmentLocalization.Data
framework: appstoreconnectapi
role: symbol
role_heading: Object
path: appstoreconnectapi/apppreviewset/relationships-data.dictionary/appstoreversionexperimenttreatmentlocalization-data.dictionary/data-data.dictionary
---

# AppPreviewSet.Relationships.AppStoreVersionExperimentTreatmentLocalization.Data

The request body you use to update an app preview set.

## Declaration

```data
object AppPreviewSet.Relationships.AppStoreVersionExperimentTreatmentLocalization.Data
```

## Properties

id: type: