Which fields must agree across a shipment's documents

01The four groups that most often fail to agree

Across the documents, four groups of fields carry almost all the risk. They are worth checking in this order, because the first one is the only one that can cost you the exemption outright:

• The party chain: consignee, importer, tax ID. This is the critical one — if the consignee or the tax ID does not match the entity holding the promotion, the exemption cannot be used. Naming the bank as consignee is a normal arrangement under a letter of credit, but it requires the notify party and the project identifiers on the bill of lading to be complete; otherwise it is equally high risk.
• Goods description and code. The descriptions on the invoice, packing list, bill of lading, entry and promotion list must be recognisable as the same goods. Abbreviated bill of lading descriptions are ordinary trade practice, but abbreviated to the point where the goods cannot be matched to the list invites challenge.
• Quantity and unit. Pieces, metres, sets and cartons each have their place; a unit mismatch makes the quantity impossible to verify at all. A promoted project must also watch whether the cumulative quantity has exceeded the approved total on the list — the excess is not covered by the exemption.
• Weight and volume. A material difference between the packing list gross weight or measurement and the bill of lading, without explanation, is a high-risk item.

02One that is easy to miss: how the year is written

Thai official documents commonly use the Buddhist era, several centuries ahead of the Gregorian calendar. Storing a Buddhist-era year as a Gregorian one produces absurd dates — the kind of error automated checking is most likely to pass over, while it makes the whole timeline meaningless.

03A promoted project has three more to reconcile

Where the import carries an exemption, beyond the four groups above:

• The promotion certificate number and release number are present and correspond to this shipment.
• The list description and the actual goods agree — what was approved on the list is what arrives.
• The exemption treatment is correctly reflected on the entry.

If these do not line up the consequence is not a clarifying note but the loss of the exemption on that shipment, which becomes a duty-paid import on the spot.

04One more that has nothing to do with tax and costs real money

If the party responsible for delivery and document release is not named on the bill of lading, a gap opens in taking delivery. The goods have arrived and nobody can exchange the documents and collect them in time — that is demurrage, charged by the day. It does not affect compliance; it simply burns money, usually at the worst possible moment.

05When to check, and how to make it a process

The answer is before shipment. Once documents have been issued, changing them requires an amendment process, the other side's cooperation and time; once the goods are at sea or at the port, your options are at their narrowest.

• Before ordering and invoicing: fix the consignee, tax ID, goods description, code and unit, and have the supplier issue on that basis.
• Before shipment: put the four documents side by side, checking consistency across them rather than the tidiness of any one.
• Before arrival: confirm the release documents are in place and the party handling delivery is named.

What goes wrong here is almost never difficulty — it is that each person checks only the document in front of them. A cross-document comparison sheet, with the same field across four columns, makes the mismatch visible.