Case Study: Catching a $1,076 Billing Error Before It Cost Our Client a Dime
What We Were Looking At
At A2Z Supply Chain, we pulled four invoices from one of our client's 3PL partners. Total value came out to $11,227.60. Nothing unusual on the surface, which is exactly why audits like this matter. Billing errors rarely announce themselves.
What We Did
We went through each invoice line by line, checking rates against the contract, flagging anything that didn't match agreed terms, and double-checking accessorial charges. That's usually where things go wrong. This isn't a quick skim; it's the kind of check that only pays off when you're willing to slow down and actually verify the numbers instead of trusting the total.
What We Found
One thing stood out: a $1,076.00 discrepancy across the four invoices, close to 10% of the total billed amount. That's not a rounding error. That's a real number that would've quietly gone through if nobody had checked.
What Happened Next
We flagged it, the provider agreed, and that $1,076 is coming off the payment. Simple as that. No dispute, no drawn-out back-and-forth. Just a clean correction because the numbers were there in black and white.
Why This Matters
This is the whole point of running regular invoice audits with 3PL partners: it's not about assuming anyone's trying to overcharge you. It's about the fact that errors happen at scale. If nobody's checking, nobody's catching them. One audit cycle just put over a thousand dollars back in the client's pocket money that would've quietly left the business otherwise.
This is the kind of audit work A2Z Supply Chain runs for every client every cycle. Because the invoice you're paying isn't always the invoice you should be paying. For any brand running high shipment volumes through a 3PL. It's worth checking.