---
title: identifier
framework: usd
role: article
role_heading: Article
path: usd/identifier
---

# identifier

A string value that identifies the app-specific notification.

## Overview

Overview The runtime provides this identifier to send the notification to the app. Set a custom value for this property for each unique notification your asset uses. Declaration uniform string identifier

## See Also

### Properties

- [info:id](usd/info-id.md)
- [affectedObjects](usd/affectedobjects.md)