产品包装上的二维码:品牌经理指南

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常见问题(FAQ)
What is the minimum size of a QR code on packaging?
2x2 centimeters at handheld scan distance. Larger packaging supports 3x3 centimeters for easier scanning under retail lighting. The rule is one-tenth of the expected scan distance, so a code scanned from a meter away needs at least 10 centimeters.
What are common QR code mistakes to avoid?
Low contrast between the code and the background. Print sizes below 2 by 2 centimeters at handheld distance. Missing or weak call to action next to the code. Linking to a slow mobile page that loads in more than three seconds.
When not to use a QR code?
Skip QR code when shoppers cannot scan from a comfortable distance, when the linked content offers no value beyond what fits on the label, or when the destination is better delivered through NFC, a printed URL, or a chatbot.
What QR code will not expire?
The QR code itself never expires. What expires is the destination URL. Static code stays locked to a single URL forever, so it keeps working as long as that URL stays live. Dynamic codes work as long as the subscription remains active and the redirect server runs.
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