Customer is shipping to Guam (U.S. island territory in Micronesia) using GU as countryCode
Step-by-step guide
Customer is using GU countryCode when shipping to Guam but unable to create a label
Error: There is no international destination available for this shipment destination, weight, format and service
On Intelligent Shipper GU - Guam is a valid Destination
Solution:
Guam is considered as county/ state of U.S., so the country code should be US not GU.
Please see available destination for Royal Mail and Guam has not been considered as Country.
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