---
title: TVTopShelfItemsDidChangeNotification
framework: tvservices
role: symbol
role_heading: Global Variable
path: tvservices/tvtopshelfitemsdidchangenotification
---

# TVTopShelfItemsDidChangeNotification

A notification to post when your app’s Top Shelf content has changed.

## Declaration

```occ
extern NSString * const TVTopShelfItemsDidChangeNotification;
```

## Discussion

Discussion When the content has changed, post a new notification using the default notification center ([NSNotificationCenter defaultCenter]). At some point in the future, the system will fetch the new data from your extension. The notification’s parameters are ignored and should be nil.