Often times we will need to use your serial number on your device to work on it. Below is how you will find it on Apple devices such as computers, iPads, or iPhones.
Apple Computers (Mac Computers)
Go to the Apple icon in the top left of the screen and select the first option 'About This Mac'.
On the 'Overview' tab the Serial Number is located near the bottom of the information displayed. Here is is blocked by the red box for security reasons.
iPads and iPhones
On iPads and iPhones the serial number can be located on the back of the devices in very small print.