I was having this issue and this was the cause:
All of my inventory was set to the address I had originally put in (mailing address) and it had defaulted to. I added a second address (fulfillment warehouse) and changed the default to that address but hadn't changed my inventory to that address.
To fix I deactivated my original address, and when doing that it prompted me to set a destination for all of my inventory to go to, at which point I selected the fulfillment warehouse.
Hope this helps someone!!
Im getting the same error and think it maybe to do with the 2 locations, so our unit or the fulfillment warehouse BUT not all items are at the warehouse so we set some to unit also, i think thats the issue but cant set all to warehouse as it will show zero stock with them so cant sell....its a nightmare must be some easy fix?
This is 2nd time this glitch has happened to our store.
Customers are unaware that Shopify does global update and that disables your Shipping rates. You are then forced to delete and re-enter the Shipping rates, but you don't know this until you've invested (wasted) time testing the store checkout and researching the issue.
We get message from a kind customer that cannot checkout and they share this message, "Shipping not available for the selected address" or "Some items in your cart don’t ship to your location"
This is lingering glitch is a result of poor quality control by Shopify's team of Coders.
We suffer by
1. Losing customer transactions during this problem.
2. Our time is taken away from processing orders to research the issue and fix it.
I FIXED THIS WITH AN EASY SOLUTION!!!
So I had shirts available that were supposed to be 5.5oz but instead I put 5.5lb. My shipping only allowed for things under 5lb to be shipped, so naturally it gave them an error. DOUBLE CHECK THIS PEOPLE! It may seem obvious, but it was an error I had not noticed, and you may not have either