Form Builder can be integrated with Klaviyo. After successful integration, the user’s email address will be synced with your Klaviyo list after submissions which can be used for email marketing.
Follow the steps for guidance –
Step 1. Log in to your Shopify store and navigate to Apps > Form Builder.
Step 2. Create or edit a custom form.
Step 3. Navigate to Form Settings -> Integration -> Klaviyo
Step 4. Toggle button to Enable it.
Step 5. Login to your Klaviyo account and copy your Klaviyo API Key. Click here to get Klaviyo API Key.
Step 6. Copy the key and paste it to the Klaviyo API Key field.
Step 7. Click on the refresh icon, and select Klaviyo List from the dropdown.
Step 8. Click the Save button.