Back to all documents
String ProTech · Findings · September 2026

You are paying $179 to gain a customer worth $94

Every other question about the store sits downstream of this one.

$179
cost per order
$94
order value
$0.32
returned per ad dollar

That $179 counts only the advertising that was actually set up to produce a sale. Across every campaign the figure is $296. We use the lower one because it is the fairer test, and it still does not work.

Why more conversion work will not close it

The most natural response to a bad cost per order is to improve the page people land on. That work is worth doing and it is already underway. It will not fix this.

If your conversion rate doubled tomorrow, cost per order would fall to about $90, against an order worth $94, before you have paid for the product itself.

To break even at a 60 percent gross margin, an order would need to be worth $298.55. That is 1.66 times the largest single order your store has ever taken. Repeat purchases do not close the gap either: the most generous reading of your own repeat behaviour adds about $18 per buyer.

This is arithmetic, not opinion. There is no margin at which the current cost of acquiring a customer works, because even at a theoretical 100 percent margin, with the product costing you nothing, the ceiling is the $94 the customer pays.

Three things nobody has been watching

01. Two fifths of the Meta budget went to engagement, not sales

$1,901.47 sat in ad sets optimised for post engagement, profile visits and video views. Across all of that spend, one sale. A return of roughly three cents per dollar.

02. Money went to placements that cannot sell

$340 of Google spend went to YouTube reach and video campaigns. They produced 22 clicks and no sales. One of them cost about $85 per click, for a $59.99 product.

03. Your analytics is missing a quarter of your revenue

Google Analytics has recorded $1,353 against the $1,788 your store actually took. A gap of 24 percent, checked order by order. There is also no server-side tracking connected at all, and your ad platform is matching customers on roughly one percent of the identifiers available to it. Decisions have been made on numbers that do not reach your till.

What the rest of your category does

Three products solve the same corrosion problem in a different shape. The String Sling at $34.95 to $55, sold through Guitar Center, Target and Music & Arts. The Guitar Necktie at $45. G-Suit at around $40, whose website no longer resolves.

None of them buys advertising. They reach people through retail shelves and through articles that rank for the questions guitarists actually ask. You are the most expensive option in the category, the only one without retail distribution, and the only one paying for traffic.

The answers already winning those searches are free or nearly free: wipe the strings down, buy coated strings, use a humidity pack. A $59.99 case is competing against a habit that costs nothing. That is not a conversion problem. It is a demand problem, and demand problems are not solved with conversion campaigns.

What we tested hardest, and what we withdrew

Before writing this we ran a pass whose only job was to break our own findings. It withdrew five of them, including the one we had considered strongest.

We had concluded your flagship case was misconfigured, hidden from your own shop and from Google. It is not. It is a bundle component, and Shopify documents that exact setup. The configuration is correct and we were wrong.

We also corrected the size of the gap. An earlier reading put it at roughly ten times. Measured properly against purchase-focused spend it is between 1.9 and 3.2 times. Still underwater, and by less than we first said.

The full record of what was withdrawn and why is in what we tried to break. We would rather you saw it.

The question worth answering first

Nobody has established whether this product can be acquired profitably online, at what cost, through which channel. Both agencies you have worked with assumed it could and moved to execution.

We would answer that before another pound goes into creative, traffic or conversion work. It runs alongside what is already in progress and does not replace it.

If the answer is that paid acquisition can be made to work, you will have the number it has to hit, and everything after that is execution against a target. If it cannot, you will have stopped spending against it, and the route is a different one: the shelves and the search results your competitors are already using.

What we could not establish

  • Where your sales campaigns actually send a click. We could not read the destination from outside the account.
  • Whether Google advertising ran before May 2026. There is traffic in April with no cost recorded against it, so the $821.77 we can see is a floor rather than a total.
  • Your unit cost on the case, which is what turns this from a revenue conversation into a margin one.
  • Page speed, which we could not measure within quota.