A QR code on a postcard, flyer, or other mailpiece can take a reader straight to a mobile campaign page, offer, or useful digital experience. The code is only the bridge: the destination should deliver what the printed call to action promises, and the campaign should be set up to measure the response that matters.
What should a QR code on direct mail do?
It should make a specific next step easy. A recipient scans the printed code with a phone and arrives at a relevant page without having to search for the offer or guess what to do next. That page might let someone request a quote, redeem a coupon, browse a product, register, or watch a demonstration.
USPS direct-mail guidance recommends using QR codes and tracking response, while cautioning that the destination needs to work well on mobile. A QR code is optional, however: a readable URL, offer code, or phone number can provide another response route. The mailpiece and offer must still make sense for people who do not scan.
Where should the code send people?
Send scanners directly to the promised content or action on a mobile-ready page. If the mailpiece offers a discount, make the offer visible as soon as the page loads; if it invites a quote request, make the inquiry form easy to find. Do not make scanning the first step in an unrelated search or a confusing chain of pages. USPS describes QR codes and personalized URLs as ways to connect mail with digital experiences: Integrating Direct Mail and Digital.
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How to plan the QR handoff
- Choose the campaign goal. Decide whether the desired action is a quote request, offer redemption, product browse, registration, video view, or another measurable result.
- Write a benefit-led call to action. Tell recipients what scanning will do, rather than printing a bare code. USPS’s 2014 Mail and Digital Personalization Program Requirements gave examples such as “Scan here for your special offer” and “Scan to download or redeem your coupon.” Those are illustrative historical examples, not current universal USPS requirements. See Mail and Digital Personalization Program Requirements.
- Match the destination to the promise. Put the advertised content or offer near the top of a page designed for phone screens. Keep the next action obvious.
- Choose how many codes to use. A single campaign code may be enough. Separate codes or campaign URLs can distinguish versions, audience segments, or tests, but personalization has privacy and data-handling implications that should be considered in context.
- Test the printed artwork before the full run. Scan the code at its intended printed size using representative phones and check that it opens the correct page. The cited guidance does not establish a universal minimum print size or testing protocol.
- Provide an alternative route. Include a readable short URL or phone number for people whose phones cannot scan the code or who prefer not to. USPS’s historical mail materials note that QR compatibility can vary by phone and operating system.
How to measure scans and campaign results
Plan measurement before printing. A campaign-specific QR destination or URL can help associate visits with a mail effort. USPS Delivers describes QR codes and personalized URLs as mechanisms for tracking engagement, including scans and subsequent page activity: The Power of Data-Driven Direct Mail.
Report scan or visit activity separately from the action the business actually wants, such as a purchase or quote request. A recorded scan shows an interaction; by itself, it does not establish that the mail caused an incremental sale. If the goal is to estimate incremental impact, compare a mailed treatment group with a suitable holdout where feasible. The right comparison depends on the campaign; no single attribution design fits every case.
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A USPS white paper based on a survey of marketing decision-makers reported that approximately 80% said they drove traffic from direct mail to digital channels and approximately 15% said they used QR codes in direct mail. These are historical findings from around 2019, not consumer scan rates, response rates, or current adoption figures. See The Future of Direct Mail.
Choose a mail format that supports the scan
USPS’s Every Door Direct Mail information describes local campaigns using postcards, menus, and flyers. Compare formats by how much room the offer needs, the audience and geographic targeting, printing and postage cost at the intended volume, code visibility, and whether recipients can handle the piece comfortably while using a phone. USPS advises choosing the format, list, and offer for campaign goals rather than selecting on low cost alone. Current service details are on the Every Door Direct Mail (EDDM) page.
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No cited source establishes that one format or QR size will perform best for every campaign. A QR code can be included in professionally printed artwork; buying a dedicated label printer is not a requirement.
Protect recipient trust
A QR code can conceal its destination until someone scans it, and malicious codes may lead to fraudulent sites, credential theft, requests for sensitive information, or malicious software. USPS’s Corporate Information Security Office advises scanning codes from trusted sources, previewing the web address when possible, avoiding credentials on unexpected login prompts, and checking whether a sticker has been placed over a legitimate code. See Protect Yourself From Malicious QR Codes.
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For a mail campaign, use a recognizable domain, say plainly what the scan will open, and ask for sensitive details only when genuinely necessary and handled appropriately. Recipients should check the destination URL before entering personal or payment information.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Why QR codes fit direct mail
Direct mail can carry multiple response mechanisms. In a 2012 USPS release, Tom Foti, then identified as manager of Direct Mail and Periodicals, said: “It lets you incorporate coupons, reply cards, mobile barcodes — such as QR codes — URLs and other response mechanisms.” The statement describes the range of options mail can carry; it is not a performance claim. See Direct Mail Success Tips From the U.S. Postal Service.
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