To make sure you get alerts, ensure that you have Location Services and Find My iPhone turned on in Settings > Privacy & Security.
You can then follow the location of the item using your iPhone's Find My app – and hopefully not lose track of them.
Apple has built clever safety measures into the iPhone to help you track down these tags – and identify who might be following you.
A SIMPLE iPhone trick can reveal if someone that you know is stalking you by tracking your location.
You'll need an iPhone running iOS 14.5 or later – and we're currently up to iOS 18, so there's a good chance yours is ready.