[avatar-to-video image="https://cdn.carecloud.cz/help/avatar.png" video="https://cdn.carecloud.cz/help/video/selection-by-email-campaigns.mp4"]
Select the Selection of customers by previous email campaign criteria.
The Selection of customers by previous email campaigns will appear.
Select email templates that customers did not open. Set the period in the calendar in which the customers did not open these email templates.
Select email templates that customers opened. Set the period in the calendar in which the customers opened these email templates.