Variable Custom Expenses excl. Ad Spend
What each order costs you to serve, before stock, postage and payment fees.
What it means
Variable Custom Expenses excl. Ad Spend is Variable Custom ExpensesVariable Custom ExpensesSee the full entry. with every entry marked as Ad Spend taken out. What's left is the rate-based cost of trading rather than of marketing: per-order pick and pack, a marketplace or platform commission, a fulfilment partner on a percentage of sales. Add it to Variable Custom Expenses Ad SpendVariable Custom Expenses Ad SpendSee the full entry. and you have Variable Custom Expenses again, exactly. Stock, postage and payment fees aren't in it — each has its own line.
Show the math
Formula and a worked example
Variable custom expenses are the costs you entered as a rate — a percentage of sales or ad spend, or an amount per order.
Excluding items marked as Ad Spend removes the ones flagged as marketing, leaving only the entries that exist because you shipped something.
Worked example. March: 1,500 orders on €120,000 of Total Sales. Four rate-based entries are live — a €2 per-order pick fee (€3,000), a fulfilment partner on 1.5% of sales (€1,800), an affiliate programme at 3% (€3,600) and an agency on 8% of ad spend (€1,600). The last two are marked as Ad Spend. This line reads 3,000 + 1,800 = €4,800, and Variable Custom Expenses reads €10,000.
Divide by the orders that caused it and every order carried €3.20 of this. That figure is the one to hold in your head when you price a product or set a free-delivery threshold — it's what one more order costs before you've paid for the thing inside the box.
It answers the question
What does serving one more order cost me? Not the product, not the postage, not the card fee — the rate-based charges underneath all three, which are the ones nobody looks at until they've grown.
Why it matters
It scales with volume, so it never shows up as a problem in a single month. A per-order fee that's 30 cents too high costs nothing you'd notice and thousands you'd feel across a year.
Keeping it apart from the marketing half matters because the two respond to completely different things. You cut marketing by deciding to. This only falls when you ship fewer orders or renegotiate the rate — a decision with a notice period attached.
What good looks like
There's no standard euro figure, and the total on its own is close to meaningless. Divide it by OrdersOrdersA simple, powerful demand signal; watch its trend. and read it as a cost per order — that's the version you can compare month to month, and the version you can put against your average basket.
Then check the split. If this line and the marketing half both move while the total holds, no cost changed at all: an entry was re-marked. The euro amount is right either way, but the story the two halves tell is completely different.
How to improve it
| Lever | What you do | Expect | How long | Watch out for |
|---|---|---|---|---|
| Fast Re-file the misfiled entries | Check that affiliate and agency rates sitting in here are marked as Ad Spend, and that trading costs aren't | The split lands correctly, the total doesn't move | 1 day | This line falls and the marketing line rises by the same euro. Nothing got cheaper — only the story did, so don't report it as a saving. |
| Fast Renegotiate the per-order rate | Take pick, pack and handling back to your fulfilment partner with your current volume | Cost per order down | 1 month | Cheaper handling is usually slower or less careful handling. Refunds and complaints move before the saving does, and they cost more. |
| Slow Put more units in each order | Bundle, set a delivery threshold above your average basket, cross-sell at the cart | The same per-order fee spread across more revenue | 1 quarter | Bigger baskets usually need a discount to happen, so the margin on each item falls while this cost per order improves. Check both before you keep the promotion. |
| Slow Re-tender fulfilment | Take the contract to two competitors before renewal, with a year of real volume in hand | A structurally lower rate rather than a temporary one | 1 quarter | Switching partners costs weeks of ramp-up and service dips through the handover — late deliveries and refunds tend to arrive before the lower invoice does. |
Every lever costs something somewhere. The last column is the one to read twice.
Read it with
A cost charged per order can only be read against the orders that caused it. The total alone can't tell you whether the rate moved or the volume did.
Check the end dates
More orders on a smaller rate-based cost is unusual. An expired entry or one moved into the marketing half explains it far more often than a better deal does.
Behaving correctly
Both rose together, which is what a per-order rate does. Nothing here needs a decision unless the cost per order moved with them.
Shrinking with the month
Fewer orders, smaller bill. The variable half of your cost base did its job without anyone making a call.
Cost per order climbing
Fewer orders and a bigger bill, which a stable rate can't produce. A rate was raised, an entry was backdated, or a sales-based fee met a month of unusually large baskets.
The two add up to Variable Custom Expenses exactly, so the split is the whole message. A total that holds while the halves swap means an entry was re-marked, not re-priced — the profit is identical and everything you'd conclude about marketing efficiency is not.
This falls when trade slows; fixed costs don't. Read together they tell you what a 30% drop in orders would actually cost you — this part goes away on its own, the other part needs a conversation with a landlord. That's the calculation worth doing before a quiet quarter, not during one.
Common misreads
It's only the rate-based part someone entered on Cost Settings. Postage sits in Shipping Cost, stock sits in COGS, and card fees sit in Gateway Cost. Four different lines, and this is the smallest of them in most shops.
Only if the agency entry is marked as Ad Spend. An unmarked one sits right here, quietly making trading look expensive and marketing look cheap — and both of those conclusions lead somewhere wrong.
It's charged on every order you ship. A €2 fee across 12,000 orders a year is €24,000 — and unlike a marketing budget, nobody reviews it on a Monday morning.
Also called
Variable operating costs · non-marketing variable costs · per-order trading costs · cost to serve
See yoursYour Variable Custom Expenses excl. Ad Spend for the period, next to the orders that produced it.
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