Demurrage invoices, rebuilt from the events

Ocean demurrage and detention invoices arrive as a total. The total is often wrong, late, or missing the fields a dispute needs. Per container, per day, the number is large enough that a few bad invoices pay for the audit.

Importers with real volume, and smaller ocean intermediaries who do not keep an audit desk, are the ones who feel it. A handful of boxes a year will not.

What the rebuild uses

Free time on the contract. Terminal events. Whether an appointment window existed before the clock ran. The invoice’s own dates. If the carrier billed outside the window the rules allow, or billed a party the rules no longer put the charge on, the dispute is a document, not a complaint.

The deadline is the product. A perfect audit filed a week late is a closed invoice.

What we do not pretend

Credits depend on the carrier granting them. The agent does not collect a promise it cannot keep. It files a sourced dispute in time, and logs the answer.

US lanes are where the billing rules give the dispute its leverage. Other trades can use the same event-rebuild later. They should not be the first deployment.

A logistics manager and a finance lead both have to say yes. That is a slower sale than a fleet owner. Scope the pilot to one trade lane and one quarter of invoices so the yes is about a pile of paper they already have, not a transformation program.