Priority mail tracking number not updating
They pickup their first scan at the foreign processing hub before leaving the country. Be sure you check the tracking number though and not just through Amazon if there’s an issue.
Complaining to USPS and/or your local postmaster can help sometimes.
If you routinely get no scans at all then you need to check on the quality of your labels. I regularly check tracking, looking at packages that have been on the road for 5 to 10 days. Sometimes it does not get recorded as delivered; sometimes it does not get recorded as being dropped off by me; sometimes it magically jumps from a sort facility on this coast to the customer’s mailbox on the other coast without visiting any sort facilities in between.
I’ve had packages delivered with SC, but never received the sig.
Could be a printer issue causing your barcodes to be unscannable.
the better information can be gotten by entering the tracking number directly on the USPS website.
I would also point out that there has been a major lag in USPS scans updating into Amazon tracking over the past few months - often it takes 1 to 2 days for the information you can see on to update to Amazon.
Be sure you check the tracking number though and not just through Amazon if there’s an issue. My products on the Bay aren’t updating properly either.
I have a product that says it’s in transit, yet the last scan is it being scanned in to my post office.
I watch them scan all of my packages here and then pray for the best until they get to the other end. If I was having an issue with “many” of my shipments not scanned I would look at your labels.