Hey @cantmail1 

Welcome to the Klaviyo Community. Happy you found us to help with your list opt-in settings.

Do you have multiple list in your account? If so, have you verified that the signup form is pointing to the correct list that you changed to single opt-in? If you have done all of this, can you share a screenshot of the signup form settings showing the list name and a screenshot of the consent settings for the specific list? This will help me dive in deeper to figure out why this is unexpected behavior.

I’ll be on the lookout for your response!

Hello Stephen and thank you for taking time to help me with this issue.

I confirmed that this is the list used in the sign up form.

Looking forward to hearing from you.

Best,

Hey there @cantmail1! I’m stepping in for Stephen here.

Is your signup form associated with any 3rd party integrations such as Shopify? It looks like you’ve set everything up correctly within Klaviyo so I suspect there might be an issue elsewhere. 

Hi Kaila, correct, I am using Shopify but still the email is sent by Klaviyo. 

Hmm. Well in that case there’s definitely something funky going on. I’ve opened a ticket with Support on your behalf to take a closer look. Expect an email from them soon! 

 Hi again, this still hasn’t been solved after I tried out the last suggestion provided by the support team. I replied to the ticket but didn’t get an answer.

Thanks

Hey @cantmail1, I sent them a gentle reminder. They’re the best equipped to help you at this point so I suggest future follow-ups directly with them! :)

I am having the same issue. does anyone have a sulotion for this. see screen shot of the optin email.

Hi please check the settings of the list and the setting of the account, both have the Opt-in process options have to be selected. Even if you select single opt-in in the account setting, the default option still double opt-in in the list setting. Unless you change it to single opt-in. By the way, is there anyone knows how to turn off the double opt-in setting globally?

Hello there! It seems like your double opt-in email is still being sent even though you’ve selected single opt-in. Here's a quick fix:

1. Double-check that single opt-in is selected under **Lists & Segments > Settings.

2. Ensure your form is configured to add subscribers directly without triggering a confirmation email.

3. Review your flow triggers to ensure no confirmation email is being sent by mistake.

After making these adjustments, test with a new email. If the issue persists, clearing your cache or contacting Klaviyo support might help.

Hope this helps!