Quick Answer
How does A/B testing work in BizStackPro email campaigns?
A/B testing lets you compare up to 6 versions of an email using different subject lines or content. You select the test duration, audience distribution, and winning criteria, and BizStackPro sends the winning version to the remaining contacts after the test ends.
Testing Your Emails to Find What Actually Works
Guessing which subject line or email design will perform best can lead to inconsistent campaign results.
A/B testing, also called split testing, lets you compare different versions of a campaign and use actual engagement data to determine which version performs better.
- Test up to 6 variations of an email.
- Test either subject lines or email content.
- Select a winner using Unique Open Rate or Unique Click Rate.
- Automatically send the winning version to the remaining audience when the test ends.
Basic workflow
Start the campaign, open the A/B Testing tab, enable the feature, and choose whether you want to test the subject line or the email content.
A/B Testing at a Glance
Before You Begin
Make sure the campaign has enough contacts for the number of variations you plan to test.
- Decide whether you want to test the subject line or email content.
- Have at least 10 contacts per variation.
- Decide whether Unique Open Rate or Unique Click Rate should determine the winner.
How to Set Up A/B Testing
Step 1: Open Email Campaigns
Go to Marketing → Emails and open Email Campaigns or Campaigns.
Step 2: Create a New Campaign
Create the email campaign you want to test.
Step 3: Open A/B Testing
Click the A/B Testing tab.
Step 4: Enable A/B Testing
Turn on the A/B testing toggle.
Step 5: Choose What to Test
Select either Subject Line or Email Content.
Step 6: Set the Test Duration
Choose how long the test should run before BizStackPro determines the winning variation.
Step 7: Choose the Number of Variations
Select the number of versions you want to test, up to 6 variations.
Step 8: Configure Distribution and Variations
Set the test-size distribution and add each variation manually or with available AI tools when applicable.
Step 9: Select the Winning Criteria
Choose either Unique Open Rate or Unique Click Rate.
Step 10: Choose the Delivery Method
Choose Send Now or Schedule.
Minimum contact requirement
A minimum of 10 contacts per variation is required. For example, testing 4 versions requires at least 40 contacts.
Scheduling limitation
A/B tests support Send Now or a standard Schedule. Batch and RSS schedules are not supported for A/B tests.
Managing Tests
During an A/B test, campaign management options such as pausing, editing, and resuming may be available depending on the current send status and platform rules.
Test Duration Ends
When the configured test duration ends, BizStackPro selects a winning version automatically.
Winner Is Selected
The winner is determined using the open-rate or click-rate criteria selected during setup.
Remaining Contacts
The winning version is sent to the remaining contacts after the test is complete.
Review the Results
Use the results to guide future subject lines, layouts, and calls to action.
Test for the result you actually want
If your main goal is clicks, consider testing CTA placement and button copy instead of limiting every test to subject lines.
Use Case Example
If you are launching a new product and are unsure which subject line will generate the most opens, you can test several subject lines with part of the audience before sending the winner to everyone else.
Example setup
Test 3 subject lines, use at least 10 contacts per version, select Unique Open Rate as the winning criteria, and send the winning version to the remaining contacts when the test duration ends.
Why This Matters
Better Engagement
Testing lets actual audience behavior help determine which version performs better.
Higher Performance
Winning variations can help improve open rates or click rates compared with relying only on assumptions.
Repeatable Learning
Each test can provide information that helps guide future campaign decisions.
Smarter Scaling
The best-performing version can be sent to the largest remaining portion of the audience.
Frequently Asked Questions
What is A/B Testing in Email Campaigns, and how does it work?
How do I set up A/B Testing for my email campaign?
What are the minimum requirements for running an A/B test?
What happens after the A/B Test Duration ends?
Can I schedule A/B test campaigns?
Continue Learning
Continue with related guides for creating campaigns, reviewing performance, and improving follow-up.
