Quick answer: An entry code is a unique, one-time-use alphanumeric code included with a product that customers redeem to register their purchase, access benefits, and leave feedback. Unlike generic QR codes or URLs, each entry code can only be used once—creating exclusivity, preventing fraud, and dramatically increasing engagement.
Entry Codes Explained
You've probably seen entry codes before, even if you didn't know what they were called. They're the unique codes printed on packaging inserts, product labels, or inside boxes that say things like:
"Register your product at brand.com/register"
"Your unique code: ABC-1234-XYZ"
The key difference between an entry code and a regular URL or QR code is uniqueness. Each entry code is different, can only be used once, and is tied to a specific product unit. This creates powerful benefits for both sellers and customers.
Each code works exactly once. Once redeemed, it's deactivated—preventing abuse and ensuring only real customers can use it.
Every unit shipped has a different code. This allows you to track redemption rates, identify issues, and validate authentic purchases.
Codes give customers access to something valuable: warranty registration, guides, exclusive content, or entry into giveaways.
See exactly which codes were redeemed, when, and by whom. Get real data on your packaging insert effectiveness.
Why Entry Codes Get 3-5x More Reviews
Generic packaging inserts that say "Please leave us a review!" get ignored. Entry codes work because they tap into basic psychology:
"Your unique code" feels special. It's yours alone. One-time use creates urgency—use it or lose it.
You're giving customers something valuable (warranty, guides, access). They naturally want to give something back—like a review.
Customers redeem codes right after unboxing—when excitement is highest. This is the optimal moment to ask for feedback.
Once someone starts the redemption process, they're more likely to complete it—including the feedback step.
The data backs it up:
Sellers using unique entry codes see 15-30% redemption rates on packaging inserts, compared to 1-3% engagement on generic inserts. Of those who redeem, 40-60% leave a review when prompted—resulting in 3-5x more reviews than traditional methods.
How Entry Codes Work: The Customer Journey
Here's what the experience looks like from the customer's perspective:
Inside the box, they find an attractive insert card with their unique entry code and clear instructions.
They scan the QR code or type the URL, arriving at your branded landing page.
They enter their unique code. The system validates it's real and hasn't been used before.
A quick star rating captures their initial satisfaction level. This determines what happens next.
Directed to leave a public review on Amazon, TikTok Shop, Google, or wherever you sell.
Directed to a private feedback form so you can resolve their issue before it becomes a negative review.
Customer receives what was promised: warranty registration, guides, exclusive access, or giveaway entry.
Entry Codes vs. QR Codes: What's the Difference?
A common question: "Can't I just use a QR code?" The answer is yes—but QR codes and entry codes serve different purposes. The best approach uses both together.
QR Code
- •A scannable image that links to a URL
- •Same for every product (generic)
- •Can be scanned unlimited times
- •No validation of who's using it
- •Easy for customers to use
Entry Code
- •A unique alphanumeric string
- •Different for every product unit
- •Works exactly once, then deactivates
- •Validates the user is a real customer
- •Requires entering code manually
Include a QR code for easy scanning PLUS a unique entry code that customers enter on the landing page. The QR code provides convenience; the entry code provides validation and exclusivity.
What to Offer When Customers Redeem Entry Codes
The entry code itself isn't the value—it unlocks value. Here are legitimate benefits you can offer (that don't violate platform policies):
Register for additional warranty protection beyond the standard coverage.
How-to videos, PDFs, or tutorials not available elsewhere.
First look at new products, restocks, or limited editions.
Priority customer service or direct access to support team.
Monthly drawing for free products (NOT tied to leaving reviews).
Exclusive Facebook group, Discord, or community forum.
Never offer discounts, free products, or any incentive specifically in exchange for reviews. This violates Amazon, TikTok Shop, and FTC guidelines. The benefits you offer should be for registering the product—the review request is separate and optional.
How to Create Entry Codes for Your Products
There are two approaches to implementing entry codes:
Generate codes yourself, build a landing page, and manually track redemptions. Works for very small volumes.
Pros: Free, full control
Cons: Time-consuming, no automation, easy to make mistakes, no smart routing
Purpose-built software that handles everything: code generation, validation, landing pages, smart routing, analytics, and more.
Pros: Automated, scalable, smart feedback routing, multi-platform support, real-time analytics
Cons: Monthly cost (but pays for itself with increased reviews)
ReviewStream: Entry Codes Made Easy
Generate thousands of unique codes, automate the entire feedback flow, and watch your reviews multiply.
Export your codes as CSV from ReviewStream and send to your print vendor. They'll print each insert with a different code automatically—usually just pennies extra per unit.
Are Entry Codes Allowed on Amazon & Other Platforms?
Yes—when used correctly. Entry codes for product registration are completely compliant with Amazon, TikTok Shop, Walmart, and other marketplace policies.
Asking customers to register their product for warranty, support, or other legitimate benefits is permitted.
You can ask customers to share their experience—just don't ask for positive reviews specifically.
Routing unhappy customers to private feedback (instead of public reviews) is good customer service, not manipulation.
Never offer discounts, free products, or other rewards in exchange for reviews. The benefits must be for registration, not for reviewing.
The Bottom Line
Entry codes are the most effective, compliant way to increase your product review rate. They work because they provide real value to customers, create engagement at the perfect moment, and route feedback intelligently.
Whether you're selling on Amazon, TikTok Shop, your own website, or all three—unique entry codes turn every shipment into a review opportunity.
The investment is minimal (a few cents per insert), but the return is massive: 3-5x more reviews, higher star ratings, direct customer relationships, and a competitive advantage that compounds over time.
Every package is a review opportunity.
With entry codes, you're not hoping customers leave reviews—you're creating a system that makes it easy, valuable, and natural for them to do so.