I have requested a removal of some extra inventory and received email stating the request is complete and returned inventory shipped back to us with a tracking number that starts with TBA ... I need to know how can I track this shipment progress using this tracking number? None of my tracking Apps can do an Amazon tracking number and some state that I must track it directly from within Amazon after I log in, but I didn't have luck doing so. How do I track this TBAxxxx number from within Amazon Seller Central? Thanks

Yes. These are FBA orders and almost most of them are delivered by Amazon logistics, tracking ID starts with TBA

Do the tracking numbers all have TBA in front of them?

The reason I am asking is because I placed an FBA order last month as a buyer that they kept delaying and delaying and delaying the delivery dates and I finally canceled it and I noticed the tracking number they gave to me had a TBA in front of it which means it's shipping with Amazon Logistics, which I'm thinking may have some volume issues. I reordered a similar product from a different fBA vendor and that was shipped right away with a USPS tracking number instead of a TBA number.

I wonder if Amazon told the seller of the first order that my address was undeliverable simply because Amazon could not fulfill it.

But if they are not shipping these at all you wouldn't be getting any fees so hopefully that's the case...