You have to distinguish between the packageNumber (which is an integer) and the trackingNumber (which is a string). When creating your shipment, you will get the packageNumber. With that number you can call getPackageTrackingDetails.
The Shipping-Api seems to be the right endpoint to use. See https://github.com/amzn/selling-partner-api-docs/blob/main/references/shipping-api/shipping.md#get-shippingv1trackingtrackingid
The getTrackingInformation operation accepts a tracking number as an input parameter.
Answer from René Pöpperl on Stack OverflowVideos
What exactly does Amazon Logistics mean when it uses tracking numbers starting with 'TBA'?
Amazon Logistics Tracking Number USA
Tracking Amazon Order
You have to distinguish between the packageNumber (which is an integer) and the trackingNumber (which is a string). When creating your shipment, you will get the packageNumber. With that number you can call getPackageTrackingDetails.
The Shipping-Api seems to be the right endpoint to use. See https://github.com/amzn/selling-partner-api-docs/blob/main/references/shipping-api/shipping.md#get-shippingv1trackingtrackingid
The getTrackingInformation operation accepts a tracking number as an input parameter.
Looking through the API documentation, there doesn't seem to be a good way to go from TBA number (if you can't just cut off those first three letters) to Package ID.
My order of operations on fixing this problem:
Chop the first three letters off the TBA variable you have, convert to integer, try it. Per Andrew Morton's comment.
What AfterShip may also be doing is going from the order ID. If the TBA is closely related to the order ID, the Amazon API will give you the information to go from Order ID -> Fulfillment Shipment -> Fulfillment Package -> Package ID. You could then use the Package ID to get your package information. So I'd look at Order ID's as well as Package ID's to see if you could convert one to another.
Given Stevish's comment, it's possible that the TBA can be cut off the TBA number and used as a package number if there is only one package in the order, but things get more complicated in other situations.
If you're working on a site that has the seller Order ID stored on your side, that seems to be the intent they have for getting it through the API.
Is there a way we can track Amazon tracking, you know, the TBA number? I bought something from Newegg and they sent it through Amazon shipping.
My last 10 orders have all shipped ALT with tracking numbers beginning TBA - items of vastly different size and weight - and none was or is trackable even on Amazon's own tracking site (https://track.amazon.com)
It's a sad day when I have to say I prefer UPS as a carrier.