For shippers based in the EU and given the new rules of origin statements, where goods have a value over 6000 Euros the shipper must have a REX number to present the statement on the invoice
See our blog for the statement wording https://supuk.com/our-blog/2021/brexit-checklist/
Please remind your shippers to ensure they have this number (if applicable)
If your shipper does not have a REX number from 1st Jan 2022, they must urgently apply REX (europa.eu)