To reset your Advertising Identifier on iOS or iPadOS, go to Settings > Privacy, tap Advertising, and then tap Reset Advertising Identifier. To reset your Advertising Identifier on Apple TV, go to Settings > General, select Privacy, and click Reset Advertising Identifier. To reset your Advertising Identifier on macOS, choose Apple menu > System Preferences > Security & Privacy, click Privacy, select Advertising, and then click the Reset Advertising Identifier button.
HOW TO RESET YOUR ANDROID ADVERTISING DEVICE ID
To reset your Android advertising ID, Open Google Settings on your Android device by tapping on menu and then on Google Settings once all apps are displayed on the screen. Locate and tap on the Ads menu under Services. Tap on “reset advertising ID” on the new page. Confirm the reset when the confirmation prompt is displayed.