A/B testing allows you to compare two different subject lines to see which one performs better. Here's how you can do it:
1. Create Two Variants: Write two different subject lines for the same email. 2. Segment Your Audience: Divide your audience into two groups. 3. Send and Monitor: Send each subject line to one of the groups and monitor the open rates. 4. Analyze Results: Determine which subject line had a higher open rate and use it for future emails.