'Low Stock' bundle selector title: +4.82% revenue per visitor
Test run byDave DiederenSyntra Labs
Commentary byLiftArchiveOur analysis, not theirsChanging the bundle selector title from 'Buy More, Save More' to 'Low Stock - Selling Fast' raised revenue per visitor by 4.82%. Dave Diederen ran this test on a supplement brand. Bundles, prices and layout stayed the same.
- Revenue per visitor: +4.82% ($1.02 to $1.07), estimated at about +$60,211 a month. The range was -7% to +18%.
- Conversion rate: +2.32% (2.38% to 2.44%). A small lift.
- Average order value: +2.45% ($42.86 to $43.91).
- Profit per visitor was not available because cost data was not entered.
The change
Only the bundle selector title changes, from savings to low stock.
Simplified mockup drawn by LiftArchive from the shared screenshots.
Control
The bundle selector above the add-to-cart button was titled 'Buy More - Save More'.
Variant
The same selector was titled 'Low Stock - Selling Fast'. Nothing else changed.
Why it likely won
Our reading of the result, not the practitioner's claim.
- a scarcity message gives shoppers a reason to decide now, right before they click add to cart.
- 'Buy More, Save More' asks shoppers to work out savings, while 'Low Stock' points to a simple reason to act.
- a quiet line of text feels more believable than a loud countdown timer or popup.
Caveats: The confidence ranges include zero, and the post does not share sample size or duration. The before/after image uses a brand as a visual example only. Only use low-stock messages when they are true.
Who ran it
Dave Diederen (@DaveDiederen) shared this test on X. The numbers and screenshots are theirs.
View the original post on X
How to run this test on your store
- Hypothesis
- If we change the bundle selector title from a savings message to a low-stock message, then revenue per visitor will rise because shoppers feel the decision is time-sensitive.
- Primary metric
- Revenue per visitor
- Guardrails
- Average order value
- Bundle take rate
- Refund rate
- Who should test it
- Stores with a bundle or quantity selector on the product page, especially consumables like supplements. Skip it if stock is never actually low, since false scarcity can damage trust.
Questions
What should my bundle selector title say?
In this test, 'Low Stock - Selling Fast' beat 'Buy More, Save More' by 4.82% in revenue per visitor.
Do low-stock messages increase conversions?
They did here, with conversion up 2.32%. Use them only when stock is genuinely limited.
Does urgency copy lower order value?
Not in this test. AOV rose slightly, from $42.86 to $43.91.
Similar tests
@oliverkenyon@oliverkenyon@oliverkenyon@oliverkenyon@oliverkenyon@oliverkenyon