When you activate a QR Tag it is linked to an email address of your choice. Once activated, messages from finders will be forwarded to this address.
You can activate tags by scanning the QR code on the tag, or by using the Deeple ID code located on the tag. It is located here:From 'My Deeple' you can deactivate tags - in case you want to pass the item on to someone else - or just don't use the item anymore.