We are having an issue with using carrier UPSN which is UPS Ground going to Kilsyth Australia 3137,

everytime we try to manifest the shipping it says "No postal rate found for location"

I have gone into the country code and maintained the UPSN shipping information to be set up to ship to AU, but still does not allow.

Add entry entry into the postcode table and restart the WM.Depends on which version you are using.