> ## Documentation Index > Fetch the complete documentation index at: https://support.getskara.ai/llms.txt > Use this file to discover all available pages before exploring further. # How to use Campaign A/B Testing Campaign A/B Split is a common technique used in marketing campaigns to compare the performance of two different variations of a campaign. The purpose is to determine which version performs better in terms of a specific metric or goal. It involves dividing the target audience into two groups and presenting each group with a different version of the campaign.Topics Covered: * [**How to Use Campaign A/B Testing**](#how-to-use-campaign-ab-testing) * [**A/B Test Configuartion**](#ab-test-configuration-ab-campaign-distributionchoose-the-percentage-of-receipts-to-include-in-the-test-so-that-the-winning-variant-will-automatically-be-sent-to-the-remaindersuppose-you-select-ab-campaign-distribution-as-40-then-it-would-be-tested-with-20-of-emails-will-be-sent-to-variant-a-and-20-of-the-emails-will-be-sent-to-variant-b-winning-variant-will-be-sent-to-the-remaining-60-of-the-contacts) ### How to Use Campaign A/B Testing Navigate to the **Outreach Icon** on the left menu barClick on **Email Campaign** Screen Click on **+Campaign** Head over to\*\* Enable \*\*A/B Testing. Screenshot Once you enable this option a new variant will get created replicating all the values from the previous variant to the new A/B Split. Screenshot You can make changes to the Template or the Subject Line of the new Variant based on your requirement.Salesmate allows you to create a maximum of **3 variants** for a campaignIf you cancel A/B Testing, then all variants will get canceled except the one that was created first. ### A/B Test Configuration \*\*A/B Campaign Distribution:\*\*Choose the percentage of receipts to include in the Test so that the winning variant will automatically be sent to the remainder.Suppose you select A/B Campaign Distribution as 40% then it would be tested with 20% of emails will be sent to Variant A and 20 % of the emails will be sent to Variant B. Winning variant will be sent to the remaining 60% of the contacts. * \*\*Test Duration * \*\*You need to be set for the time to test the variant. After the time is up the winning variant will be sent to remaining contacts.You need to set a minimum of 4 hrs of duration time and the Maximum test duration time for any campaign would be up to 48hrs. You cannot set the slider to be below 10%100% A/B Distribution will be equally set distribution and there would be no Fall back version. * \*\*Winning Metric -\*\*You need to select the metric parameter in order to determine the winning variant. * \*\*Open Rate -\*\*The number Of times the email is been opened \*\*Click Rate -\*\*How many times links have been clicked. * \*\*Click-through Rate -\*\*Links Clicked from opened emails in a given time. * \*\*Fallback version -\*\*You must set which email variant will be sent if the result is inconclusive. ### **Here, the winning variant template will be sent to the remaining contacts once the test duration is completed.** Screenshot