An invoice stops being a PDF you email.

Yes. In Cord an invoice is an object of its own: go to Invoices, pick a client, enter the line items and save it as a draft. No quote required. If the deal did come from an approved quote, the invoice inherits client, lines and currency automatically and the two stay linked.

Yes, in Mexico. Cord stamps CFDI 4.0 through an authorized certification provider using your own company digital seal certificate: the document is issued under your tax ID, with a valid UUID, XML and PDF. You upload your certificate once in Settings and every invoice is stamped under your account, not a shared one.

From the invoice detail, with the Void action. Cord sends the cancellation to the SAT using your own certificate and only marks it void once the SAT confirms; if the SAT rejects it, Cord tells you instead of showing a "cancelled" invoice that is still live. If the invoice already has payments applied it cannot be voided: Cord asks you to issue a credit note, which is the correct document for that case.

It is a link belonging to each invoice, with your logo and your color. Your client sees the line items, the total, the due date, the payments already received and the balance left, and can pay it by card right there; the money lands in your connected account. They can also download the PDF and, in Mexico, the stamped XML.

Yes. The invoice is issued in the currency of the sale — the one your client approved and pays — and states the exchange rate to your accounting currency, which is exactly what the SAT requires. Cord takes the rate from a real, dated source. If it cannot get a rate, issuing fails with a clear message rather than inventing a number: an invoice carrying a fake exchange rate is a tax problem, not a detail.

Yes. Every invoice carries its own due date, and Cord emails the client a reminder before and after it lands. The inbox shows how much is outstanding, how much is past due, and how many days each invoice has been late. Webhooks also fire an event when an invoice goes past due, gets paid, or fails to collect.

Yes. The v1 API exposes the full invoice: create a draft, issue it, send it to the client, record a payment, void it and issue a credit note, plus read invoices with their balance. Webhooks report every state change. Cord also exposes an MCP server, so an AI assistant can read your invoices and prepare drafts.

Cord issues a commercial invoice with your own sequential numbering, your tax details and your brand, in the currency of the sale. It is a valid commercial document for collecting and for your books, and Cord says exactly that: it does not claim to have filed anything with your local tax authority, because that rail is not connected outside Mexico yet. The per-country architecture is already built to add them.