Channel Island shipments validation (coming soon)
October 22nd, 2025 by Syed Haroon Shah
Royal Mail shipments from Great Britain to Guernsey and the Isle of Man will soon be treated as international dutiable. When the destination postcode begins with GY or IM and the country code is GB, GG, or IM, a CN23 customs declaration form will be automatically generated. To ensure compliance, customers will also be required to provide detailed item information, including the HS code and country of origin.
NoteThis enhancement is currently under development and will be available in the next release.