Why One‑Yuan QR Exchange Promotions Fail to Capture User Data

Scanning QR codes on beverage caps has become a standard promotion in the fast‑moving consumer goods (FMCG) industry, with campaigns such as "scan to win a red packet" or "one‑yuan exchange" costing millions of yuan per run. The author notes that while the digital layer (unique QR codes, system development, prize budgets) is expensive, the data collected is limited to how many caps are returned in a region.

The core problem is that brands treat the scan as a simple prize‑trigger rather than a user‑entry point. The win/lose popup is disconnected from the consumer’s identity, purchase context, and future behavior, so the brand cannot answer who the consumer is, where they bought the product, or whether they will repurchase.

Historically, the "one‑yuan exchange" was meant to solve three issues of the classic "buy‑one‑get‑one" model: counterfeiting, traceability, and user data capture. In practice, most brands only achieve the first—unique QR codes reduce fraud—while the latter two layers (full‑chain tracking and data accumulation) remain unrealized.

First dilemma: zero user asset accumulation. A typical scan flow yields only a WeChat OpenID, without phone number, profile, purchase history, or behavior tags. This ID is an isolated string that cannot be linked to future interactions, forcing brands to spend again for each new campaign.

The author compares this to internet companies that record the entire user journey (download, registration, browsing, purchase, repurchase) and use the data for precise targeting, highlighting the mismatch between high digital spend and low‑level user management in FMCG.

Even a benchmark brand like Dongpeng, which built a digital chain from consumer to terminal to distributor, reduced its sales expense ratio from 31.92% in 2018 to about 17% in 2023, but still falls short of internet‑level user operation.

Second dilemma: purchaser vs. user ambiguity. In many cases the person scanning the QR code (store staff, distributor employee, or end consumer) is not the actual product consumer, leading to polluted data and ineffective promotions.

Third dilemma: cap‑redemption bottleneck. The redemption process—from consumer scanning to store receiving subsidy—can take weeks, causing frustration for both retailers and consumers, and resulting in abandoned promotions.

Fourth dilemma: ineffective performance evaluation. Brands report metrics such as total scans, win rate, cap‑recovery rate, and cost, but cannot answer critical questions about genuine consumer participation, conversion to repeat purchase, or true user acquisition value.

Fifth dilemma: treating users as disposable caps. The 15‑second interaction (scan, popup, prize) offers no opportunity to convey brand story, product benefits, or personalized offers, leading to zero retention and a perception of the brand as a transient entity.

The conclusion urges brands to flip the mindset: design a user‑relationship system first (membership tiers, points, precise targeting, scenario tags) and then embed QR scans as one touchpoint within that system. Scanning should be a means to deepen user connections, not the end goal.

Brands that have successfully closed the "one‑item‑one‑code" loop have adopted AI‑driven user segmentation and real‑time redemption tracking, turning the QR code from a simple prize trigger into a powerful data acquisition tool.