---
title: EKEventStore.EventStoreChanged
framework: eventkit
role: symbol
role_heading: Structure
path: eventkit/ekeventstore/eventstorechanged
---

# EKEventStore.EventStoreChanged

A notification posted when changes are made to the Calendar or Reminders database.

## Declaration

```swift
struct EventStoreChanged
```

## Overview

Overview Let observation = NotificationCenter.default.addObserver(of: eventStore, for: .changed) { message in … }

## Topics

### Initializers

- [init()](eventkit/ekeventstore/eventstorechanged/init().md)

## Relationships

### Conforms To

- [NotificationCenter.MainActorMessage](foundation/notificationcenter/mainactormessage.md)
- [SendableMetatype](swift/sendablemetatype.md)