---
title: DeviceModifiedEvent
slug: jetstream-v3/devicemodifiedevent
docTags: 
createdAt: 2024-01-23T15:45:04.801Z
---

## About

DeviceModifiedEvent data indicates when a user in your application has modified a device using [Modify a Device](docId\:UCpbZFFrCWS0H_zJf4OVp).

## Fields

| **Property**                                         | **Details**                                                                                                                                                                                                               |
| ---------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Type**<br />:::BlockQuote
string
:::               | The type of Jetstream event.                                                                                                                                                                                              |
| **EventId**<br />:::BlockQuote
string&#xA;Unique
::: | The ID assigned to the event.                                                                                                                                                                                             |
| **EventTime**<br />:::BlockQuote
string
:::          | The time that the event occurred.<br />The value is expressed in UTC.<br />This value is expressed in the following format: yyyy-MM-ddTHH\:mm\:ssZ                                                                        |
| **Version**<br />:::BlockQuote
int
:::               | The Jetstream version of the event.                                                                                                                                                                                       |
| **Device**<br />:::BlockQuote
string
:::             | The name of the device.                                                                                                                                                                                                   |
| **Id**<br />:::BlockQuote
ulong
:::                  | The ID assigned that was generated by Jetstream and assigned to the device.                                                                                                                                               |
| **Aliases**<br />:::BlockQuote
array(string)
:::     | The list of aliases a device can assume.                                                                                                                                                                                  |
| **DeviceDefinition**<br />:::BlockQuote
string
:::   | The name of the device definition associated with the device.                                                                                                                                                             |
| **DeviceSerialNumber**<br />:::BlockQuote
string
::: | The physical serial number of the device.                                                                                                                                                                                 |
| **Region**<br />:::BlockQuote
string
:::             | The geographic region that the RFID device is being placed. This is used to create the most reliable and lowest latency connection to the device<br />This value is one of the following possibilities: US, EU, AP, USGOV |

## Example

### Published DeviceModifiedEvent

:::BlockQuote
\{
&#x20;   "Id": 101,
&#x20;   "Device": "MyDeviceName",
&#x20;   "DeviceDefinition": "TS032, Cabinet, US, UHF, GF, 7.9 cu ft",
&#x20;   "DeviceSerialNumber": "MyDeviceSerialNumber",
&#x20;   "Region": "US",
&#x20;   "Type": "DeviceModifiedEvent",
&#x20;   "EventId": "f635b21d-1425-4a10-b934-266e707ce785",
&#x20;   "EventTime": "2018-05-19T07:17:50Z",
&#x20;   "Version": 3
}
:::

## Version Changes

None – this is a new event.