If you're using the API box content method and don’t see any Amazon-Partnered carrier options (like UPS), this is a known issue.
As of October 2025, Amazon’s API may intermittently fail to return partnered shipping options when generating transport options.
How to Fix It (Quick Solutions)
If this happens, try the following:
Click Regenerate Options for the same placement
Try a different placement option
Retry generating transport options a few times
👉 In most cases, partnered options will appear after a few attempts.
What’s Happening?
Sometimes, when you generate transport options:
Amazon may only show non-partnered carriers
Partnered options (like UPS) may appear only after retrying or selecting a different fulfillment center
This is due to inconsistent API responses from Amazon.
Helpful Tip
If you have a preferred fulfillment center, retrying the Regenerate Options button multiple times may help surface better shipping options.
Preventing This Issue
If you encounter this frequently, you may consider switching to:
2D Barcode method for box content submission
This method may provide more consistent transportation options, though it comes with a different workflow.
See here for information on the 2d barcodes workflow.
Summary
This is a known Amazon API issue
Retrying or regenerating options usually resolves it
Switching to 2D barcodes can help if the issue persists
✅ Tip: Be patient when generating options—sometimes it takes a few tries for Amazon to return the correct partnered shipping choices.