MailerLite Integration
The MailerLite action sends form field values to MailerLite.
Connect the Form
- Add the required form fields, including Email, then select MailerLite under Actions > Actions After Submission in the Content tab.
- Configure Use MailerLite API Key. Default uses site credentials; Custom uses credentials for this form. After correcting an invalid key, click Reload Key.
- Select the destination and map its fields to Form Field values, then save. Labels do not map automatically; destination choices depend on the connected account.
MailerLite Settings
Use MailerLite API Key, group, Field Mapping > Custom Fields, and Reactivate subscriber to request an existing subscriber's reactivation.

Enable Run Action Conditionally and add Conditions to run this action only when all configured field comparisons match.