Can I do A/B testing with DESelect?

yes! a/b testing can be done in deselect segment using the sort & limit feature this feature allows you to sort records (randomly or based on a specific field) limit records (by a specific number or percentage) this makes it easy to split your audience into test groups for controlled experiments how to set up a/b testing in deselect segment? on the output step, click on the tools choose sort & limit a modal will appear where you can sort your data (randomly or by a specific field like email address or last name) limit your data by selecting a number (e g , 10,000 contacts) or a percentage (e g , 50% of the total records) click save example use case a/b testing for email subject lines scenario you want to test two email subject lines to determine which one gets a higher open rate steps in deselect segment total audience 100,000 email subscribers create group a (50%) create a selection with all 100,000 contacts open sort & limit and set sort by a specific field (e g , contact id, email address, or last name) limit 50% of records create group b (remaining 50%) create a second selection with the same dataset in sort & limit, apply sort by the same field as in group a limit 50% of records filter out contacts already included in group a (e g , use a greater than/less than condition on contact id) send emails assign email subject a to group a and email subject b to group b in salesforce marketing cloud analyze results compare open rates and click through rates to determine which subject line performs better