Winning the purchase order is the part everyone celebrates. The document that determines whether you make money on it is the routing guide, and most vendors read it once, during onboarding, and never again.
That's where the margin goes.
What a routing guide actually is
It's the retailer's written instructions for how freight has to arrive. Which carrier to use and who pays. How and when to schedule a delivery appointment. How cartons are labeled and where the label goes. How pallets are built, wrapped and stacked. What documentation has to accompany the load and what has to be transmitted electronically before the truck arrives.
It reads like a manual because it is one. Some run to a hundred pages. They're revised regularly, usually posted to a vendor portal, and the retailer's position is that you're responsible for checking.
The important thing to understand is that the routing guide is not guidance. It's the terms you agreed to when you signed the vendor agreement, and it's enforced financially.
How chargebacks work, and why nobody notices them
A chargeback is a deduction the retailer takes for non-compliance. The mechanism matters: you don't receive a bill. You receive less money.
An invoice goes out for the full amount, and the payment that arrives is short. Somewhere in a remittance file there's a deduction code explaining why. If nobody in accounts receivable is reconciling deductions against shipments, this can run for a year without anyone connecting it to what's happening on the dock.
Individually the amounts look small. A flat fee per violation, sometimes a percentage of the merchandise cost, occasionally both. Across a season of shipments to a national account, small stops being the right word.
What actually triggers them
Delivery timing. Late is obvious. Early is also a violation at most retailers, because their receiving door is scheduled and an unexpected truck occupies a slot somebody else was assigned.
Appointment problems. No appointment, wrong appointment, or arriving outside the window granted. Some accounts measure the window in a matter of minutes.
The ASN. If the account requires an advance ship notice, it has to be transmitted before the truck arrives and it has to match what's on the truck. An accurate ASN that arrives after delivery is still a violation. An on-time ASN that doesn't match the physical load is worse, because now you have a discrepancy as well.
Carton labeling. The shipping label has to be the right format, in the right place on the carton, with a barcode that scans on the first pass. Placement rules are specific and they vary by retailer. A label applied to the wrong panel is a violation even when everything on it is correct.
Pallet construction. Maximum height, no overhang, how many tiers and how high, how the wrap is applied, whether the pallet has to be a specific grade. Retailers reject pallets at the door over this and charge for the privilege.
Case pack and inner pack. Shipping twelves to an account set up for sixes creates a receiving discrepancy even though the total units are right.
Paperwork. Missing PO number, wrong PO number, BOL that doesn't match the ASN.
Fill rate. Shipping short against the PO is its own category at most accounts, with a threshold below which deductions start.
The cost people miss
Deductions are the visible cost. The vendor scorecard is the expensive one.
Most large retailers score their vendors on compliance and on-time performance, and that score follows you into the next buying conversation. A vendor with a poor scorecard gets less shelf space, less consideration for promotional programs, and in some cases gets put on a corrective action plan with its own costs attached.
You can absorb deductions. Losing a program because your score slipped is harder to recover from.
Most of this happens at the warehouse
This is the part vendors tend to get wrong organizationally. Compliance is usually owned by sales or customer service, because that's who deals with the retailer. But nearly every violation on the list above is created at the dock: how the carton was labeled, how the pallet was built, when the truck left, what got transmitted.
The people who can prevent chargebacks are the people touching the freight. If they don't have the current routing guide, they're working from whatever they were told when the account opened.
What to actually do about it
Get the current routing guide and hand it to whoever ships your product. Not a summary. The document. If you use a 3PL, they need it in full, and they need to be told when it changes.
Turn it into a written pack-out standard. Requirements living in one supervisor's head fail the week that supervisor is out. The standard should specify label placement, pallet configuration, case pack and documentation, in enough detail that a new person could follow it.
Assign ownership. One person who checks the vendor portal for revisions, on a schedule.
Reconcile deductions against shipments monthly. This is how you find out which violations you actually have, rather than which ones you assume you have. A pattern usually emerges fast, and it's usually one or two causes producing most of the money.
Dispute the ones that are wrong. A meaningful share of deductions are issued in error, and retailers have a process for disputing them. What they also have is a deadline, often short. Miss it and a valid dispute is gone.
Document every outbound. Photographs of the finished pallet and the label, the signed BOL, the appointment confirmation, the ASN transmission record. A dispute without evidence is a request for a favor.
What to ask a warehouse before you move product
Whether they've worked to routing guides for your accounts, and which ones.
Who maintains the pack-out spec, and whether it's written down.
Whether they can produce and transmit an ASN, if your accounts require one, or whether that stays on your side.
What their on-time outbound performance is, and how they measure it.
What documentation they keep on outbound loads, and how long they keep it.
A warehouse that answers those five questions specifically has done this before. One that answers generally has not.
How we approach it
Clark ships into big-box retail for vendors whose programs depend on it. We work from the retailer's current routing guide rather than from memory, we keep the pack-out standard in writing, and we document outbound loads so that when a deduction shows up you have something to dispute it with.
We transmit advance ship notices today for customers whose accounts require them, so that piece doesn't have to sit on your side. It's worth asking any warehouse you're evaluating, because plenty of operations this size will tell you it's your problem.
What we can't do is fix the ones that start upstream. If product arrives late from your plant, or short against the PO, no amount of dock discipline recovers that. We'll tell you where the problem actually originated, including when it's on our side.