Main issue: Carrier-calculated shipping rates were not appearing for orders under $100; only the free shipping option showed for orders over $100, and a $20 test order returned “cannot ship.”
Diagnosis: The default package was likely set to a UPS Express package, which only supports certain services, preventing rates from displaying. Switching the default to a standard UPS or custom package with accurate dimensions partially resolved the problem.
Key constraints: The platform supports only one default package for calculating rates at checkout. It cannot automatically choose different package sizes based on order contents.
Workarounds:
Use a midrange default package that approximates your typical shipments.
Adjust calculated rates to balance over/undercharges.
Use third-party apps (Boxify, Advanced Shipping Rules, Parcelify) to define multiple package sizes and return accurate live rates.
Select the exact package manually when purchasing shipping labels in the admin.
Status/outcome: Partially resolved with a corrected default package; multiple-package support is a logged feature request. Store is still in development, so live checkout verification isn’t available yet.
Notes: “Default package” is the box/poly used to compute rates; “carrier rates” are live prices from carriers like UPS.
I currently have 2 shipping options in my settings: 1) Free shipping over $100. 2) carrier rate shipping.
The carrier rate shipping option is not showing up, only the free shipping is (when the order is >$100). Why won’t the carrier rate show up for orders less than $100? Photos attached of my shipping settings. I tried testing an order in the US for only $20 and said it could not ship.
Thanks for your post. Can you confirm what package you have set as your default package? For context, UPS offers a selection of Express packaging that is only compatible with certain rates, so if that packaging is set as your default, the rates may not appear at checkout. If this is the case, you can change the default package to another UPS package or add a custom package with accurate dimensions.
Could you also share your URL with me so I can go through checkout and see what shipping rate options are displayed?
Thank you for the reply, Greta! That was very helpful and partially solved the issue.
My next question would be: I will need different sized packages for different volumes that are purchased (i.e. if someone buys an 8ct of my product, I would need a small box. If they buy a 4ct, I would use a bubble pack). Is it possible to have the shipping package be size dependent?
My shop is still in development so it currently cannot be viewed but I am just testing internally to make sure the checkout/shipping is calculating correctly.
Thanks for getting back to me. You are currently only able to have one default package which is used to calculate shipping rates. I understand that this might not be ideal, and I will happily pass your feedback about this along to our developers.
Some workarounds other merchants have utilized for this have been using a default package that’s about in the middle of the weight/size of all their available packaging. You can also adjust the calculated rates to reach a better balance of profit and loss from shipping — this help document has some context on this. Another option that many merchants turn to is to use a third-party shipping rate app to add multiple package sizes and create accurate shipping rates based on those packages. Some popular options are Boxify, Advanced Shipping Rules, and Parcelify.
Even though you currently can only have one default package used for calculating shipping rates, you can still choose the package that works best for your products when purchasing a shipping label within the admin.
Our help document on package and shipment weights is super helpful for understanding all of this!
Please let me know if you have any other questions and I’d be happy to help.
Thank you for the explanation! I think the ability to have multiple packages while using carrier rates would be a big help because a lot of sellers likely have different sized products which makes one package tough to figure out.
It’s my pleasure, @tony94 ! I absolutely understand where you’re coming from. Feedback like this is how we decide what features to make, so I appreciate you taking the time to share this with me.
Let me know if there’s anything else I can help you with!