Your Apple ID is also associated with devices that have Find My iPhone (iPad/Mac/Apple Watch) enabled. In the event that you lost your Apple device, you can use Find My iPhone/iPad/Mac to locate your device, lock it, erase it, and so on. If you’ll be getting rid of your Apple ID, then it is necessary for you to remove this association.
Below are the steps on how to disable or turn off Find My iPhone/iPad/Mac on your iOS and Mac devices.
Turning Off Find My Mac
STEP 1: Click on the Apple menu, then select System Preferences.
STEP 2: Click iCloud.
STEP 3: Scroll down, then look for the Find My Mac option from the list.
STEP 4: Check the box next to Find My Mac to disable it.
STEP 5: When prompted, enter your Apple ID password, then click Continue to confirm.
Turning Off Find My iPhone/iPad
STEP 1: On your iPhone/iPad Home screen, go to Settings.
STEP 2: Tap on your Apple ID banner at the top of the main Settings screen.
STEP 3: Tap iCloud.
STEP 4: Scroll down, then tap on Find My iPhone (or iPad).
STEP 5: Toggle off Find My iPhone (or iPad).
STEP 6: When prompted, enter your Apple ID password, then tap on Turn Off to confirm.