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Managing A/B Tests
Managing A/B Tests
Cassandra Campbell avatar
Written by Cassandra Campbell
Updated over a week ago

Running a Successful A/B Test

Now that you've created your first A/B Test, let's go over how you can set up your testing parameters, monitor performance between your Variants, and end testing when you've found the best Variant for gaining the most conversions.

Adjusting the Traffic Percentages for Variants

In a Test using two different Variants, each will have a 50% chance of being shown by default. If you want to adjust how much each is weighted against your incoming site traffic, you can change the sliders under the % of Traffic column in the Tests Dashboard:

Sumo List Builder - Adjusting traffic percentages

Viewing and Understanding Your Stats

The Tests Dashboard is also where you can see a breakdown of different stats to gauge how your Test is performing.

Sumo List Builder - Viewing and understanding stats

Conversions and Conversion Rates

  • Views - This is the number of times each Form was viewed.

  • Conversions - This is the number of times each Form converted (i.e., when an email is submitted or a Call to Action is clicked).

  • Conversion Rate - This is the percentage of Forms viewed that resulted in conversions.

Statistical Significance

Very important! Statistical Significance shows how accurate the results of your Test are. You shouldn't end a test with lower than 95% Statistical Significance in order to make sure that the results are useful.


Baseline is the base Form you're testing against the Variants. Each Variant will show a percentage compared to the baseline's performance.

Ending a Test

Once your test has been running for a while and you're confident in the results (remember, wait until you have 95%+ Statistical Significance!), it's time to select a winner.

Choosing a winner

Open up the Tests view and click the Use This button next to the Form you want to select as the winner of the Test.

**Note: Be careful! Once you select a winner, all other Forms in the Test will be lost and the winner will replace the Baseline Form!

Sumo List Builder - Choosing a Test winner

Copying a Variant as a New Form

If you want to keep one of the lower-performing Variants in one of your tests, you need to make a copy it as a Form in order to preserve it. To do that, select the option Copy as Form from the dropdown menu next to it.

Sumo List Builder - Copying a Variant as a New Form

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