CN23 and commercial invoices: choose the document workflow by service

Identify the route before selecting a customs form

A parcel label and a customs document perform different jobs. The label identifies the delivery service and destination; the declaration describes the goods for customs processing. Start with the full booked product, dispatch country and destination. Royal Mail’s separate Postal Customs Hub and Commercial Customs Hub are aimed at international account holders. Their instructions should be applied to the listed services and route, rather than copied onto every parcel bearing a Royal Mail reference.

For a China–UK consolidation, ask the provider to confirm the import clearance pathway and the documentation it needs from the Chinese sender. A UK international export instruction is not automatically the checklist for that inbound shipment. Similarly, a return from Edinburgh to a Chinese supplier needs its own export and destination review. Our recommendation is to keep a document checklist for each movement rather than reuse a form because it was accepted on a previous order.

Read CN23 requirements within the postal guide’s scope

The reviewed Postal Customs Hub requires complete customs information and describes CN23 documentation for the postal services in its table, including International Business Tracked, International Business Tracked Heavier and International Standard. It explains that account holders can enter customs information through Click & Drop to generate appropriate documents. The page also says required documentation varies by the purchasing method. Confirm that method before deciding what must accompany the parcel.

That guide calls for electronic information as well as the required physical documentation. Where additional commercial invoices, certificates or licences are needed for the postal route, it gives instructions for supplying them in an exterior document wallet. The guides also identify exceptions for Northern Ireland-to-EU movements. Follow the current route and product instructions rather than assuming that a successfully printed CN23 completes the process. This article does not use a single CN22 value threshold as a universal rule for these business services.

Use the commercial workflow for the named Priority service

The Commercial Customs Hub’s product table is specifically for International Business Tracked Priority. It calls for a commercial invoice to be uploaded before manifesting and describes the data required for that service. Its table states that the commercial invoice and generated CN23 do not need to be physically attached on this service. This service-specific instruction differs from the postal guide’s physical-document workflow.

The commercial page also describes invoice generation arrangements for Pro Shipping users. Confirm whether your chosen system expects your own uploaded invoice or provides the applicable generation workflow. Either way, check the information supplied before release. A document generated from inaccurate order data remains inaccurate. Additional licences or certificates have separate requirements; the commercial guide instructs senders to provide their details electronically and attach required documents as specified.

Reconcile line items, origin and values against the actual goods

Both guides ask for specific goods descriptions and accurate line-item information. The postal table describes a minimum six-digit HS code; the commercial Priority table describes a minimum eight-digit tariff code and warns that national extensions vary. These are documented service requirements, not a classification decision for your product. Use the appropriate official tariff guidance and confirm the destination’s requirements when preparing the shipment data.

Our packing recommendation is to compare the declaration with the final carton after consolidation. Check descriptions, quantities, goods values, weights and manufacturing origin by line. The country of origin is different from the dispatch warehouse’s country. Keep shipping charges in their appropriate field rather than silently adding them to every item value. Royal Mail’s reviewed guides also reject zero-value declarations for items such as samples, returns and repairs within their scope.

• Match the booked service to the correct customs guide.
• Compare electronic data with the final packed contents.
• Confirm the required tariff-code detail and documents for the destination.
• Check the invoice workflow before manifesting.
• Retain the released document version with the parcel reference.

Make corrections before the parcel leaves your control

A useful release check compares the label address, customs recipient and invoice with the approved order. Where the commercial route needs importer information, establish which party fills that role. If a supplier substitution changes the material, origin or quantity, update the documents and booking data together. Avoid fixing only the printed page while leaving the electronic record unchanged; the two may be reviewed at different points in the journey.

Record who approved the final information and keep the document version linked to the parcel. These are our operational recommendations for resolving later questions, not a promise of clearance. For Jeton Express work, provide the actual goods details, movement direction and intended service when reviewing document readiness. The shipping-documents tool can organise that conversation; acceptance, valuation, classification and any special permissions still need confirmation for the real shipment.