eBay envelope shipping

[veteran_store]

so I am new to selling and I’ve noticed that all my items that have shipped via eBay envelope postage have a USPS tracking number but all of them do not give you USPS updates and show that the tracking number is invalid. 

has anyone else encountered this and if so, is it something to worry about? I’m worried that my buyers are not receiving those specific items  

[comics-scifi-collectibles]

@veteran_store 

The eBay Standard Envelope for select items $20 or under is a metered mail system. ONLY the sorting equipment can read the code.

There's no reason for you to take a loss if the tracking never shows delivery or if it's damaged in shipment then you file an insurance claim.

The most common reason for not having an envelope scanned is because it was not flexible enough to go through the sorting equipment and was considered non machinable. I know of a high volume card seller who said they put three sheets of white paper around the card in a plain white envelope to protect it while it goes through the sorting equipment then it stays flexible and is not damaged.

This post by a fellow Mentor has some screen shots and more information, including how to file an insurance claim and a link for esus envelope tracking, that you will find helpful>

https://community.ebay.com/t5/Ask-a-Mentor/Standard-envelope-shipping/m-p/34239169#M598479