A/B Testing in Sparkforge Email Campaigns

A/B testing in Sparkforge compares email variations against each other and lets the data pick the winner. Test subject lines or content across up to six variations.

How it works

1. A slice of your audience receives the variations.
2. Sparkforge tracks engagement (open or click rate) over the test duration.
3. The winning variation is sent automatically to the remaining recipients.

Why run A/B tests

• Engagement: find the version that gets more opens or clicks
• Data over guesswork: decisions based on real recipient behavior
• Deliverability: refine subject lines that land in the inbox
• Conversions: compound small wins across your sends

Set up an A/B test

1. Open your campaign in the Email Builder.
2. Toggle Enable A/B Testing in the left panel.
3. Choose the test type:
   • Email Subject — test different subject lines
   • Email Content — test different copy, images, or buttons
4. Set the test duration (e.g., 4 hours, 8 hours).
5. Choose the number of variations (up to 6).
6. Adjust the test size with the slider. Example: with two variations, send each to 25% of your list, reserve 50% for the winner.
7. Add your subject or content variations. Use Content AI for quick generation if you want a starting point.
8. Pick the winning criteria:
   • Unique Open Rate for subject line tests
   • Unique Click Rate for content tests
9. Click Send or Schedule.

Tips for cleaner results

• Test one variable at a time. Multiple changes muddy the winner.
• Give the test enough time. Most opens happen in the first few hours, but click data often needs longer.
• Match the winning criteria to the test type. Open rate for subjects, click rate for content.
• Keep test sizes meaningful. Tiny lists won't produce a confident winner.