One or more of the items in the order does not qualify for Shipping Method
Discussion
No Estimates For Shipping Method Reason: One or more of the items in the order does not qualify for Shipping Method
Explanation: Certain shipping methods are only valid for certain products. The classic example is USPS Media Mail, which only accepts books and recorded media (and a few others).
The reason code may also be: One or more of the items in the order does not qualify for USPS: Media Mail
Remediation Steps
If your product is showing as not qualifying for a restricted shipping method and it should qualify, you need to mark the item as a special type.
Navigate to:
Select the item you are troubleshooting by clicking the Item ID or the pencil graphic to the right.
Scroll to the bottom of the Item Editor screen to the Advanced section. There you will find the "USPS Media Product Type field".
Choose the product type required for this shipping method. Click Save.
Test your cart again.