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Why Do Most Ecommerce Product Launches Fail?
Eight out of ten fail.
Quick Answer: What is a fake door test?
A fake door test puts a product in front of real customers before it exists. You create a product page, measure clicks on "Buy Now," then show a "coming soon" message. Look for a 5%+ intent rate (visitors who click buy/notify). One skincare brand tested 4 products for $800 in ad spend — only 1 passed, and it became their second-best seller. The other 3 would have cost $40,000+ in wasted inventory.
That is not a guess. Alberto Savoia, Google's first Engineering Director, spent years researching why new products fail. His conclusion in The Right It: most products fail not because they are built badly, but because they are the wrong product for the market.
The usual ecommerce business plan goes like this — find a product you believe in, source it, order inventory, build the listing, launch, and hope. By the time you learn whether customers actually want it, you have already spent thousands.
There is a faster way. It is called the fake door test.
What Is a Fake Door Test?
A fake door test puts a product in front of real customers before it exists.
You create a product page, a buy button, an ad — anything that looks like a real offer. When someone clicks "Buy Now" or "Add to Cart," you capture that intent. Then you show a message: "This product is coming soon. Enter your email to be notified."
No inventory. No manufacturing. No risk.
What you get is real data. Not survey answers. Not focus group opinions. Actual purchase intent from people who were ready to spend money.
Savoia calls this pretotyping — testing the "it" before building "it." His core principle is simple: make sure you are building The Right It before you build It right.
How It Differs from an MVP
An MVP (minimum viable product) still requires building something. A fake door test requires building nothing except the door itself. The product page is the test. The click is the data.
Think of it this way. An MVP asks: "Can we build this?" A fake door test asks: "Should we build this?" That second question saves far more money — and most founders skip it entirely.
How Do You Run a Fake Door Test on Your Store?
Here is the step-by-step process we use with Shopify stores in Malaysia when testing new product lines.
Step 1: Build the Product Page
Create a full product page as if the item exists. Write the description. Add mockup images. Set the price. Include reviews if you have them from beta testers. The page needs to feel real — a half-finished listing will skew your results.
On Shopify, mark the product as "out of stock" but keep the page live. Replace the Add to Cart button with a "Notify Me When Available" email capture.
Step 2: Drive Traffic to the Page
Send the same traffic you would send to any product launch. Run a small ad campaign — $200-500 is enough. Share the page in your email list. Post it on social media.
The traffic source matters. If you only share it with your most loyal customers, the results will be biased. Use the same channels you would use for a real launch.
Step 3: Measure the TRI Meter
Savoia's TRI Meter (The Right It Meter) gives you a framework for reading the results. You are measuring three things:
- Interest rate — what percentage of visitors click through to the product page?
- Intent rate — what percentage click "Buy" or "Notify Me"?
- Commitment rate — what percentage enter their email or attempt to complete a purchase?
Set your thresholds before you start. For most ecommerce products, we look for:
- Interest rate above 3% (from ad click to product page)
- Intent rate above 5% (from product page to buy/notify action)
- Commitment rate above 2% (from action to email capture)
If your numbers hit these benchmarks, you have validated demand. If they fall short, you just saved yourself the cost of a failed product launch.
Does this sound like your store? Find out where you're leaking revenue — take the free Revenue Score. 3 minutes. Free. No pitch.
Step 4: Read the Data Honestly
This is where most founders trip up. The fake door test only works if you respect the results.
If 500 people visited your product page and 3 clicked "Notify Me," that is a 0.6% intent rate. The product is not validated. It does not matter how much you personally believe in it.
Savoia calls this opinion versus data. Your opinion is that customers will love this product. The data says they will not. Trust the data. Your ecommerce business plan should be built on numbers, not gut feelings.
What Are Real Examples of Fake Door Tests?
Dropbox ran the original fake door test in 2007. Before writing a single line of code, Drew Houston created a three-minute video showing how the product would work. The signup waitlist went from 5,000 to 75,000 overnight. The product did not exist yet.
Buffer did the same thing. Joel Gascoigne put up a landing page with pricing tiers. When visitors clicked a plan, they saw a message: "We're not ready yet. Enter your email." Enough people did that he knew the product was worth building.
For ecommerce, we have seen Shopify brands run fake door tests on new colorways, bundle configurations, and entirely new product categories. One skincare brand we worked with tested four new products simultaneously using fake door pages. Only one hit the intent threshold. They manufactured that one and it became their second-best seller within six months.
The other three would have cost $40,000+ in inventory. The fake door test cost $800 in ad spend.
What Mistakes Should You Avoid?
Making the page look fake. If the product page looks like a placeholder, visitors will not treat it seriously. Use high-quality mockups and write real copy.
Testing with the wrong audience. Showing the page to your Instagram followers who already love everything you make is not a valid test. Use cold traffic from ads.
Ignoring negative results. The whole point is to learn. A failed fake door test is a success — you just avoided a $20,000+ mistake.
Running the test for too short. Give it at least 7 days and 500+ visitors. Anything less and the sample size is too small for reliable conclusions.
Not having a plan for what happens next. If the test passes, move fast. Those email subscribers are warm leads with a short attention span. Manufacture, ship, and email them within 60 days.
When Should You Not Use a Fake Door Test?
Fake door tests work best for physical products, new product lines, and significant pivots. They are less useful when:
- You are iterating on an existing product (just ship the improvement)
- The product requires extensive explanation that a single page cannot deliver
- Your market is so small that 500 visitors is months of traffic
For those situations, customer interviews and contribution margin analysis are better tools.
Frequently Asked Questions
Is it dishonest to show a product that does not exist?
No — as long as you are transparent. The moment someone attempts to buy, you tell them the product is not yet available and offer to notify them. You never take money for something that does not exist. Brands like Tesla and Kickstarter campaigns use this exact model at massive scale.
How much traffic do I need for a valid fake door test?
Aim for at least 500 unique visitors to the product page. Below that, your conversion data is not statistically meaningful. With a $200-500 ad budget, most ecommerce brands can hit this in 7-10 days.
Can I run multiple fake door tests at once?
Yes, and you should. Testing four products simultaneously costs almost the same as testing one. Create separate pages, run separate ad sets, and compare the TRI Meter results side by side. The winners validate themselves.
What conversion rate means the product is validated?
There is no universal number, but for ecommerce we look for a 5%+ intent rate (visitors who click the buy/notify button) as a strong signal. Below 2% is a clear no. Between 2-5% is worth investigating further with a modified offer or different positioning.
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