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Simplifying the Cart Page Increases Revenue 11.7%

"It seems that perfection is reached not when there is nothing left to add, but when there is nothing left to take away"

- Antoine de Saint-Exupery

In the eCommerce space, new features are regularly added to sites. Usually this is done because of design trends, market shifts, or in an effort to differentiate yourself from the competition. Over time some sites fall victim to "feature bloat", where there are too many elements on the page competing for attention and detracting from the page's primary purpose.

Question

A client came to us looking for ways that they could improve their order conversion rate. They were new to the concept conversion rate optimization (CRO) and had not previously performed any split testing or rigorous data analysis, so this was an opportunity to come in completely fresh.

One method we use to devise first-run experiments is to dive into a client's Google Analytics account and evaluate their conversion funnel. We noticed a rather large pageview discrepancy between their cart and checkout pages. The client decided this was a ripe opportunity to run their first A/B test. Thus, we were presented with the question: "Why is there a high drop-off rate on the cart page?"

Hypothesis

Screenshot of the original cart page:

Screen Shot 2015-06-04 at 11.46.52 AM

Using In-Page Analytics, we looked at where shoppers were clicking on the cart page. Although the "Go to Checkout" button was the most heavily clicked item on the page, several other elements on the page also had a high level of heat, particularly the top navigation, and left column content.

Because of this user behavior, we wondered if perhaps the shoppers skewed towards multi-item purchases, so we took a look at average order size. The overwhelming majority of orders were single item purchases. Due to the discrepancy between user navigation behavior and purchasing habits, we hypothesized that: "Shoppers are getting distracted by an overload of features that aren't relevant to the page's primary purpose. They are navigating away from the cart page and then abandoning their cart."

Prediction

"Simplifying the page layout by removing low relevancy elements and presenting a stronger, more focused call-to-action will decrease drop-off and abandonment." To accomplish this, we made several alterations to the page:

  • Removed the top navigation and utilities from the header
  • Removed the left column (which contained redundant site search, catalog quick order, weekly special email sign up form, and secondary thematic navigation)
  • Removed item recommendations
  • Increased the width of the cart item grid
  • Increased the size "Continue Shopping" and "Go To Checkout" call-to-action buttons and gave them a more semiotic design
  • Separated the call-to-action buttons and positioned them in a way that is more relevant to their purpose (left = "back" for Continue Shopping, right = "forward" for Go To Checkout)
  • Duplicated the call-to-action buttons above the cart items grid

Screenshot of the simplified cart page layout:

Screen Shot 2015-06-04 at 11.48.08 AM

Testing

Performed a 50:50 A/B split test. Variation A was the baseline: 50% of traffic sees the original page. Variation B was the comparison: the other 50% of traffic sees the simplified layout.

Analysis

The experiment ran for 1 month during a non-holiday, typical traffic period. The results verified the hypothesis. Version B saw a 3.8% increase in order conversion and an impressive 11.7% increase in revenue.

Order Conversion

  • Version A - 34.84% conversion rate
  • Version B - 36.15% conversion rate (+3.8% improvement)

Revenue

  • Version A - $50.56 per visitor
  • Version B - $56.46 per visitor (+11.7% improvement)

Another interesting takeaway from this experiment was that Version B caused an engagement focus on the "Continue Shopping" button.

Continue Shopping Button Engagement

  • Version A - 11.22% conversion rate
  • Version B - 25.48% conversion rate (+127.1% improvement)

For those shoppers interested in doing additional shopping, instead of being presented with a variety of navigation options, they were presented with a focused call-to-action that would direct them to a single location which can be more carefully controlled and merchandised. We surmised that this was a contributing factor to the big revenue jump and plan to do additional testing on this space.

Summary

Be careful when deciding what features go on which pages. Each page on your site has a purpose, and that should be the primary focus of the page above all else, lest the page falls victim to feature bloat. Sometimes there can be a lot of contributing factors:

  • Marketing says those cross-sells are really important
  • Customer Support is getting calls; says we need a warning message
  • The HiPPO's pet project
  • An inexperienced designer and/or developer

This can be disastrous on a business critical page like the cart page. Allowing these situations to happen and persist can damage your bottom line. The key is to test the impact of these changes. Stay simple. Stay clear. Stay focused.

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