Sign in to your Paypal acct. go to the "details" of the transaction, scroll to the bottom of the page, and find "add tracking", click on that and you will be able to enter your info. When you returm to your summary page, you will see the tracking # below the item in you "sold" section. You can then "add a note" for yourself. Enter the date you sent the item, now you have everything in one place.