I want to add an iPhone XS UDID in the Apple developer portal but I am unable to find the UDID in iTunes and without adding the UDID I am unable to run my app on the iPhone
1.Connect iPhone to Mac
2.Go to About This Mac
3.Click on "System Report" and select "USB" from left panel.
4.Find your iphone and look for the "Serial Number" field. This is what you need.
5.Copy this "Serial Number" and register the device in the developer portal. Make sure developer portal recognizes the device model. (As the developer portal recognizes the device model for a valid UDID when registering the device).