Prevention or compensation: what a delayed response actually costs

There are two completely different ways to address the detention-fee problem, and it's worth being honest that they aren't equivalent — only one of them actually removes the problem, rather than just softening its consequences.

The compensation path

A D&D audit works after the fact: the invoice has already been issued, the error has already happened, and now it needs to be proven wrong and part of the amount recovered. This is a real, working mechanism — but it only recovers the part that was miscalculated. If a container genuinely sat at the terminal past free time because nobody reacted in time, that amount is legitimate, and no audit will reduce it — because there was no error there, only a delayed reaction.

The prevention path

A real-time alert about expiring free time works differently — it prevents the invoice from ever reaching the size it would have reached without the warning. Knowing a day in advance that a container's free time expires tomorrow lets you either expedite pickup, or at least make a conscious decision that an extra day is justified this time — but that's now your decision, not a delayed discovery after the fact.

Why both paths are needed, not just one

It's worth being honest: prevention requires a process change — someone at the company actually has to act on the alert, not just receive it. If an alert arrives but nobody sees it or has time to react, it changes nothing on its own. An audit, meanwhile, works regardless of whether anyone managed to react in time — it simply checks an invoice that already happened.

In practical terms: an audit is a safety net that works even when prevention failed. Prevention is a way to need that safety net less often. One doesn't replace the other — they address two different parts of the problem, and a company that has both loses less than a company that has only one.