Locating iOS device ID using Xcode

iOS device ID, or UDID, of the rented iOS device is required to start Appium locally.

Ensure that the following requirements are met:

• Rent an iOS device in the Remote TestKit service, and enable Xcode Connector. (Learn more.)
• Xcode detected the iOS device.

For the device identifier, perform the following steps:

1. Open Xcode, and then click Devices from the Window menu.

2. Select Connected device.

3. Under Device Information, you will get an identifier, or UDID, of the device.

   覚えておく: 
   This UDID is necessary when configuring Appium server locally, and defining desired capabilities for the assign cloud device built-in action. (Learn more.)