# Removing mobile discount banner and pop-up: +20.1% add-to-cart

- Outcome: Won
- Page type: Site-wide (Ecommerce)
- Elements: Announcement bars, Popups & email capture
- Test run by: [Clean Commit](https://liftarchive.com/practitioners/clean-commit/)
- Commentary by: LiftArchive (our analysis, not theirs)
- Original source: https://cleancommit.io/ab-tests/streamlining-mobile-shopping-by-removing-discount-banners/
- Page: https://liftarchive.com/test/cleancommit-streamlining-mobile-shopping-by-removing-discount-banners/

Removing the discount banner and discount pop-up on mobile lifted add-to-cart rate 20.1% and click-through rate 12.1%. Clean Commit ran this test for an anonymized Shopify store and published it in its A/B test library. The sample was small, only 1,647 mobile visitors, and no order data was shared.

## Result

**+20.1% add-to-cart**

- Add-to-cart rate: +20.1%, the headline number, but on a small sample.
- Click-through rate: +12.1%, the metric the test was set up for, with a 93.8% probability of beating the original.
- Bounce rate: -4.9%, so fewer shoppers left after one page.
- Orders and revenue: not shared, so the effect on sales is unknown.

## Control

The mobile site showed a discount banner and a discount pop-up to shoppers.

## Variant

Both the discount banner and the discount pop-up were removed on mobile. The product grid, filters and navigation stayed the same.

## Why it likely won (our reading)

- On a small screen, a banner and a pop-up take space and attention away from products.
- Closing a pop-up is an extra step that can push some mobile shoppers to leave.
- Two elements were removed together, so it's not clear whether the banner or the pop-up mattered more.

## Caveats

Very small sample: 1,647 mobile visitors over 13 days, with no order or revenue data. The banner and pop-up were removed together, so the result can't be split between them.

## How to run this test

- Hypothesis: If we remove the discount banner and pop-up on mobile, then more shoppers will click through and add to cart because the screen is less cluttered.
- Primary metric: Mobile conversion rate
- Guardrail: Email or SMS sign-ups
- Guardrail: Revenue per visitor
- Guardrail: Discount code usage
- Who should test it: Stores with heavy mobile traffic and several discount prompts on screen. If your pop-up is a major source of email sign-ups, measure the list growth you lose, not just add-to-carts.

---

Credit: Clean Commit ran this test and owns the result. Summary and commentary by LiftArchive (https://liftarchive.com/test/cleancommit-streamlining-mobile-shopping-by-removing-discount-banners/).
Usage: Free to use, quote and build on, with credit and a link: name the practitioner or organization that ran the test and link to its LiftArchive page. The results belong to the practitioners who ran and shared them; the summaries and commentary are LiftArchive's.