SignalRouteMost QR codes go in the wrong place
The most common QR-code mistake we see is putting it on a sticker by the front door of the shop. Customers walk past it on their way out, mid-conversation, with their phone in their pocket. Conversion: roughly zero.
The second most common mistake is putting it in the email footer of every outbound message. Customers see it 40 times, ignore it 40 times, and the request loses meaning through repetition.
The right answer depends on your industry, but it follows two principles. First: the customer needs their phone in their hand at that moment. Second: the request needs to feel related to the moment. Asking for a review when the customer is scanning a menu is a bad ask. Asking for a review thirty minutes after a tech finished fixing their water heater is a great ask.
What follows is twelve placements ranked by what actually converts, with the reasoning for each. Lift the ones that fit your business; ignore the rest.
The 12 placements, ranked
1. Post-service text message, 30 minutes after completion
The single highest-converting placement isn't a QR code at all — it's an SMS link sent shortly after service ends. The customer's phone is already in their hand. The visit is fresh. There's no moment of finding-the-code. Conversion rates here are 3-5x any printed placement. If you do nothing else from this list, do this one.
2. Hand-delivered service ticket or invoice
For trades — plumbers, HVAC, electricians, auto repair — a QR printed on the carbon copy the tech tears off and hands to the homeowner converts second-best to SMS. The tech can literally point at it and say "scan this." Compliance with the verbal ask matters: techs who mention the QR convert 3x the techs who silently hand the slip over.
3. Receipt — printed at point of payment
For restaurants, salons, and other walk-in retail, the printed receipt is the natural moment. The customer is at the counter, transaction complete, looking down at the slip. A QR with one short line of copy ("Scan to share your visit — it takes 30 seconds") converts at 4-7%, which sounds low until you compare it to the 0.5% you get from anything passive.
4. After-visit packet, for medical and dental
Dental practices and medical offices have a built-in moment: the post-visit packet handed over at checkout. A QR on the inside cover, beside the next-appointment card, converts because the patient is already sitting in their car flipping through the packet. Don't put it on the outside; put it on the page they actually open.
5. Vehicle wraps and yard signs (with a clear "scan after" frame)
For plumbers, HVAC, landscapers, and other on-site trades, a QR on the truck panel works only if framed correctly. "Scan to leave a review after your service" beats "Scan for a Google review" every time because the first frame matches the customer's mental model of when reviews happen. The yard-sign version after a completed install is even better — it lives in front of the customer's house for a week.
6. Table tents and bill folders, for sit-down service
For restaurants with table service, the bill folder is the better placement than the table tent. The bill folder is open exactly when the customer is settling up — phone often in hand, transaction satisfaction at peak. A folded card slipped into the folder beside the receipt converts 2-3x a tent on the table.
7. Email signature — but only the owner's
A QR (or short link) in the owner's email signature outperforms one in everyone else's. Customers who get an email from the owner are usually escalated cases or relationship customers — both groups respond well to the personal touch. Don't blast it across all employee signatures; you'll devalue the ask.
8. The "thank you" follow-up email, 24 hours after service
A short, plain-text email — no fancy design — that thanks the customer by name and offers the link. Plain text outperforms HTML for this single use case because it reads as personal rather than marketing. Subject line: "Thanks for choosing [business] yesterday." That's it.
9. Loyalty card or punch card
For salons, barbershops, and any business with repeat-visit loyalty cards: a small QR on the back of the card. Customers carry the card in their wallet and pull it out at every visit, which means the QR gets in front of them weekly without spamming.
10. Listing photos and Google Business Profile
A QR designed into one of your Google Business Profile photos (e.g., a clean shot of the storefront with a small QR card visible on the counter) gets scanned by people researching you before they visit. These convert lower per-scan but capture a customer segment you weren't reaching otherwise.
11. Window decal at eye level near the exit
Better than the door sticker because customers leaving see it head-on rather than glancing past it. Worse than anything tied to a transaction. Useful for foot-traffic businesses where a fraction of customers don't have any other touchpoint.
12. Business card
Last on the list because business cards mostly get filed and forgotten. The exception: real-estate agents and fitness instructors whose cards get re-handed multiple times. For everyone else, this is "we tried" placement. Don't lead with it.
What doesn't work
- A QR in your email header. Customers don't look up there for a CTA.
- A QR on the website footer. People who are already on your site are leads, not reviewers.
- A QR on the menu (without an attached prompt). Reading a menu and writing a review are different mental modes; they don't bridge well.
- A QR-only sticker at the cash wrap with no copy. The customer doesn't know what they're being asked for.
The single most important thing about every QR placement
Every one of these placements needs to point at a flow that doesn't penalize unhappy customers. If your routing tool only works for high raters, you're not going to like what happens when an unhappy customer scans the post-service text. The request goes to every customer; the flow has to handle every customer well.
A compliant review-routing flow gives every scanner the option to leave a public review on Google, Yelp, or wherever — and gives unhappy customers a private feedback option as an alternative, not a substitute. That's the system worth pointing your QR codes at. See the how-it-works page for the full mechanic, or start a free trial and you can print your first QR within ten minutes.