# Sticky checkout button with order total: +9.98% purchases

- Outcome: Won
- Page type: Checkout (Ecommerce)
- Elements: Sticky add-to-cart bars, Checkout steps, fields & flow
- Test run by: [VWO](https://liftarchive.com/practitioners/vwo/)
- Commentary by: LiftArchive (our analysis, not theirs)
- Original source: https://wingify.com/success-stories/utsav-fashion/
- Page: https://liftarchive.com/test/utsav-fashion-mobile-checkout-sticky-total-cta/

A sticky checkout button showing the order total, plus a collapsed order summary, lifted purchase conversions by 9.98% on mobile for ethnic fashion store Utsav Fashion. Wingify Services ran this A/B test, published as a VWO case study. Three changes shipped together, so the result belongs to the set, not to the sticky button alone.

## Result

**+9.98% purchases**

- Purchase conversions: +9.98%.
- Revenue: +8.95%, slightly less than the conversion lift.

## Control

The mobile checkout had no primary button in view while shoppers filled in the form. The order summary sat in the page with an Edit link, and shoppers interacted with it a lot.

## Variant

A button stuck to the bottom of the screen and showed the order total. The order summary was hidden behind a View Details link, and the Edit option was removed.

## Why it likely won (our reading)

- US mobile visitors were abandoning the cart at a 67% rate. A button always in view made finishing the order the obvious next step.
- Showing the total on the button kept the cost visible without a full summary in the way.
- Removing Edit cut the chance that shoppers would go back and rethink their carts mid-checkout.

## Caveats

Three changes were bundled, so none can be credited alone. The test ran for 16 days on US mobile traffic; sample size and significance were not shared, and the data dates from around 2020.

## How to run this test

- Hypothesis: If we add a sticky checkout button with the order total and collapse the order summary, then more mobile shoppers will finish checkout because the next step is always visible and distractions are fewer.
- Primary metric: Checkout completion rate
- Guardrail: Revenue per visitor
- Guardrail: Average order value
- Guardrail: Customer service contacts about orders
- Who should test it: Stores with long mobile checkout forms where the main button scrolls out of view. Removing the Edit option may frustrate shoppers who need to fix their cart, so watch support contacts and consider keeping an easy way back.

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Credit: VWO ran this test and owns the result. Summary and commentary by LiftArchive (https://liftarchive.com/test/utsav-fashion-mobile-checkout-sticky-total-cta/).
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.