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Rachel T
Contributor I
Contributor I
August 29, 2024
Solved

AB Test Live Flow

Hey There,

I was hoping for some advice.I am still a bit of a novice😀

Is it possible to convert a live flow to an AB test flow?

If I cannot convert to an AB then I am guessing I have to set up a new AB Welcome flow test.  If that is the case what happens to the data from the original flow?

Any thoughts greatly appreciated 

Cheers

Rachel

 

DavidV
DavidVAnswer
2025 Champion
August 29, 2024

Hi @Rachel T,

Welcome to the Klaviyo Community and thank you for your question! 

You can absolutely add A/B tests into your flow. You can do this in one of two ways:

  1. Test the actual email itself - you can create a B variant of the individual email/SMS inside of the flow. This can be done through the email editor, and this will allow you to A/B test on the content of the email (example - subject line, content inside email etc). More information about that in this article.
  2. Create a random sample in a flow of 50% - this will allow you to test the actual flow pathway. This is helpful if you want to test the wait steps or channel used. For example - let’s say I wanted to test if an email or an SMS is more successful. You do this through a conditional split and selecting “Random Sample”. This would look something like the below: 

     

In short, yes you can add A/B tests to existing flows. I hope that answers your question!

Thanks
David

Zyber is New Zealand's leading Shopify Premier & Klaviyo Master Platinum Partner passionate about helping merchants succeed. www.zyber.co.nz & www.unlocked.co.nz

4 replies

DavidV
Partner - Platinum
DavidVAnswer
2025 Champion
August 29, 2024

Hi @Rachel T,

Welcome to the Klaviyo Community and thank you for your question! 

You can absolutely add A/B tests into your flow. You can do this in one of two ways:

  1. Test the actual email itself - you can create a B variant of the individual email/SMS inside of the flow. This can be done through the email editor, and this will allow you to A/B test on the content of the email (example - subject line, content inside email etc). More information about that in this article.
  2. Create a random sample in a flow of 50% - this will allow you to test the actual flow pathway. This is helpful if you want to test the wait steps or channel used. For example - let’s say I wanted to test if an email or an SMS is more successful. You do this through a conditional split and selecting “Random Sample”. This would look something like the below: 

     

In short, yes you can add A/B tests to existing flows. I hope that answers your question!

Thanks
David

Zyber is New Zealand's leading Shopify Premier & Klaviyo Master Platinum Partner passionate about helping merchants succeed. www.zyber.co.nz & www.unlocked.co.nz
Rachel T
Contributor I
Rachel TAuthor
Contributor I
September 2, 2024

Hi David,

Thank you so much for your explanation. It was very helpful and I appreciate you help.

Cheers

Rachel

 

Contributor I
November 11, 2025

Hi David, 

I found your response helpful. I was building a test flow and was wondering why within the email details panel I don’t see an option to allow an A/B test? I’ve added a screenshot of what I see below. Thanks.

 

DavidV
Partner - Platinum
2025 Champion
November 11, 2025

Hi ​@vincianity332 ,

Welcome to the Klaviyo Community!

Great question, and thankfully a simple answer to this one. The Klaviyo flow builder won’t let you add an A/B test until you’ve set up the actual template. 

So in this case all you need to do is hit the Select Template button and either pick a template from your library or create one from scratch.

As soon as you’ve added a template onto the email in the flow the option should appear like the example below:

Hopefully that solves this for you - let me know if you have any questions or you get stuck! 

Thanks
David

Zyber is New Zealand's leading Shopify Premier & Klaviyo Master Platinum Partner passionate about helping merchants succeed. www.zyber.co.nz & www.unlocked.co.nz