USPS Label Broker Code QR Code Foremat

[lgp46]

On an item I sold there was a USPS Label Broker Code in QR Code format.  Don't know what that means.   Can someone tell me what I am supposed to do with that? 

Thanks,
Lonnie

[comics-scifi-collectibles]

@lgp46   It sounds like you selected the QR code option instead of printing the label.   You show the post office the code on your phone and they print the label for you.  

[lgp46]

Thank you.  I'll be more careful on the shipping option.  I appreciate your response.