Q: Why am I receiving this error in wise lister? Error: A shipping service is not specified. [At least one valid shipping service must be specified.]
A: This means that you likely don't have your business policies selected and in place and you haven't selected shipping service (in the event that you're not using business policies).
Be sure to log into Wise Lister and go to Batch Quick Lister Settings.
To fix this, you'll need to click the Get/Update Profiles button and select the payment, shipping, and return profile that you want to use by default.
Also, directly below that, please enter a default quantity value. This can be changed as you list if you need different items to have a different quantity, but you should have a default value filled in.