How can I change the success message for a form in klaviyo?

Hi @juniad ,

Welcome to the Community - happy to help! 

When you are in the form editor, you can select the “Success” step at the top of screen to preview the current Success Message.

From this screen, you may choose to edit the content of the message to your liking. You can read more in the Getting started with sign-up forms guide if you need further assistance with this process. 

If you are not seeing the option to edit the Success Message in your form editor, this could be because your buttons “After Submit” function may not be set to “Show Success Message”. To check this, you will need to take a look at the button included in the previous step of your form to confirm these settings. 

There is an excellent thread linked below that discusses this setting:

Hope this helps!

- Ashley Ismailovski