A/B Testing
Optimize your messaging strategy with A/B tests to identify data-driven improvements to emails for increasing customer engagement.
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Optimize your messaging strategy with A/B tests to identify data-driven improvements to emails for increasing customer engagement.
You can use the A/B testing functionality in the App to test variations in your email content (for example: subject lines, visual assets, or calls to action). A/B test reach for each version can be configured by percentage.
When a test is running, customers will receive a version of the message in the test (that is: the original message is not sent out to customers). Results for A/B tests can be viewed when a test is running or completed.
Save time by using our AI tool to generate A/B test message variants automatically. Just select the message you want to use for your A/B test, enter the details related to the area to improve (for example: message subject), and our AI tool will build a draft A/B test variant that you can customize.


By testing variations in your email messages, you can compare versions of a variable in your email content to determine if a version performs better based on customer engagement. Using the A/B test feature in the App gives you full control over testing your email content, as well as access to live results during an active test.
A/B test results based on open rates and click rates provide measurable outcomes for determining if changing a component in your emails can lead to real increase in customer engagement.
The following section describes the configuration required for A/B testing.
To use A/B testing for your email communications, you need the following setup:
Configure email messages in the App
When A/B tests are configured in the App, the original message will be replaced by the versions in your A/B test based on the configured reach for each version during the test.
Check out the parcelLab guides
For further information on configuring A/B tests, see our user guide documentation.
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Was this helpful?