In this experiment, a Klarna buy now pay later badge was added to the PDP. It was added above the paypal buy now pay later badge in the benefit section below the ATC button. Impact on adds to cart and sales was measured.

In this experiment, a Paypal badge with "buy now pay later" copy (pay within 30 days) was added underneath the add-to-cart button on product pages. Impact on adds to cart and sales was measured.

This experiment tested the presence of customer review (in the variation). As a result of adding customer reviews, the product page density decreased (requiring a bit more scrolling from longer product tiles). Impact on conversion was measured. 

Also the test originally ran as a "removal of customer reviews" test. However it was flipped here to align with the pattern.

In this experiment, three popular juice products were shown higher on the variation (instead of lower in the control). Impact on sales was measured.

In this experiment, reaffirming copy was added for particular size options in the variation. Here is the translation from German:

"These boxer shorts will be kept. Did you know that our boxer shorts in S are rarely returned? They fit perfectly - see for yourself!"

Impact on sales was measured.

In this experiment, free shipping was a/b tested against free shipping with a 30€ purchase or higher. Hence, in the variation, customers needed to reach a cart amount total in order to be eligible for the free shipping. 

In this product landing page experiment, the plan sort order was rearranged. In the control it was sorted from least expensive to most expensive. In the variation, the plans were shown as most expensive first. Impact on sales and revenue was measured.

In this experiment, two different navigation defaults were tested against each other. In one version we can see 1) more popular products with 2) more categorical granularity being shown in the expanded state. In the other version we see "new products" being shown as the default (with a lot fewer product subcategories) to choose from.

In this experiment, free shipping was a/b tested against free shipping with a 40€ purchase or higher. Hence, in the variation, customers needed to reach a cart amount total in order to be eligible for the free shipping. 

In this experiment, the variation remembered and prefilled user's size choices for the duration of the session. The control version always started with a fixed product size value (ex: XS). The variation prefilled them between products or screen refreshes. Impact on sales was measured.

In this experiment, product color swatches were replaced with real product photos. Whereas the control showed the colors as more abstract circles. Impact on sales was measured.

In this product detail page experiment, a number of reassurances were brought out visually in a lined or bulleted way. The 4 reassurances included: free shipping and returns; Made in Germany, 90 Day Returns; and Buy With Invoice (popular in Germany). Impact on revenue per user was measured. The control contained very feint copy (smaller and more subtle) about free shipping.

In this product detail page experiment, reassurances under the add-to-cart button were rearranged. The control contained copy about: free shipping and free returns formatted as two gray boxes, with a variety of payment methods and their corresponding logos underneath.

The variation used a more convention bulleted, line-by-line format. It also contained free shipping and returns, but also elaborated with "100 day returns", an "anti-hole guarantee", and "purchase with invoice" (perhaps more popular in Germany?). Impact on sales was measured.

In this listing page experiment, color sets of the same product were tested against individual products with unique colors (with additional product tiles). Essentially, the A version here contained fewer product items (with color sets), while the B version contained more results and tiles (with grouped products). Impact on total sales was measured.

(The original control and variation was inverted, but was flipped to match the fewer or more results pattern).

In this experiment, bestselling product colors were highlighted with a bestseller badge on product listing and product detail pages.

In this experiment, a floating add-to-cart with two product choices (color and size) were added on a product page. This appeared only after scrolling past the existing / embedded product selection buy box.

The floating add-to-cart widget had another layer of complexity in that it allowed customers to make a size and color selection with an expandable fly out. Making a selection would also append the total price to the add-to-cart button label.

Impact on total transactions was measured.

In this experiment, a floating sticky bar was added on product pages. The sticky elements only appeared after users scrolled beyond the fixed buy box  area that is relatively high on the page (visible on the control screenshot). The sticky bar contained three elements: a button to configure up to three product choices, a flavor selection pulldown, and the add-to-cart button. 

In the variation, when users clicked on the flavor pulldown three things happened. First, they were anchored back to the top of the buy box. Second, the floating sticky disappeared. And third, the flavors pulldown automatically expanded (overlapping the original primary add-to-cart button).

The control did not have any of the sticky behaviors.

Impact to total sales was measured.

In this experiment, search functionality was added in the variation, globally on mobile. Impact on sales was measured

Upon clicking the Add-To-Cart button, the button label changed to a cheering message which congratulated the user on his choice and ensuring that shipping is free. Translation: "Good choice. Your shipping and returns are free."

Here is an experiment with an added "price per pair" in the context of products with multiple items (packs).A high contrast badge-like copy was appended underneath the price which translates to "only $X per item". Impact on sales was measured.