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EDI 810: the invoice
The 810 is your invoice, structured so the buyer's payables system can match it against their purchase order and their receiving without a person reading it.
That matching is the whole game. An 810 that reconciles flows through to payment; one that disagrees sits in a queue you cannot see into.
What the document carries
The lines you are billing, priced and quantified, referencing the purchase order they fulfil. The buyer's system checks it three ways: against what they ordered, against what their dock received, and against the prices their agreement says.
Currency and tax presentation follow the guideline. A Canadian supplier invoicing a US retailer bills in the currency the guideline names, and how tax appears on the document is settled per trading partner during testing.
How Odoo produces one
The invoice Odoo already creates from the delivery is the source. Because it was born from the same chain, the same order, the same shipment, it inherits the quantities that were actually shipped, which is most of what matching requires.
The mapping work is the references: their purchase order number, their location codes, their item numbers, carried through from the 850 so the 810 can point back at them. That thread through the chain is configured once per partner and then holds.
Where it goes wrong
Price disagreements and quantity disagreements. Bill for what was ordered when the dock received less, or bill at your price when their agreement says another, and the difference comes back as a short payment on the remittance advice, coded, weeks later.
Counting those deduction lines is how a supplier finds out what their document quality costs. Three months of remittance advices answers it, and the chargebacks guide walks the counting.
The rest of the set
One document never travels alone. The mandate that asks for this one names its siblings, and the questions repeat: direction, mapping, and what happens when it is late or wrong.
Every code in plain language: the X12 catalog. What a late or wrong document costs: chargebacks and deductions. Who mandates and how it is enforced: the US programmes and the Canadian ones. How the documents fit into purchasing, fulfilment and accounting: EDI across the supply chain.
Start with the letter
The Requirement Check takes two answers: who mandated you and where you stand today. You get back a plain readout of which documents that customer asks for and what has to change inside your Odoo. It is free and it commits you to nothing.
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