Variants
A variant is one version of the campaign being tested. Keep each test focused. If several things change at once, the result is hard to interpret.
Split percentage
The split percentage decides how much of the audience receives each test variant before the winner is selected. Use a large enough test group to reduce random noise, but keep enough audience for the winning version.
Common mistakes
- Testing subject line, content, and CTA at the same time.
- Changing the winner metric after launch.
- Running tests on very small audiences.
- Sending the same test repeatedly to the same audience.