Workflows, also known as automated email sequences, are a series of pre-planned emails that are set to be sent to customers based on certain triggers. For example, if someone subscribes to an email list, they might trigger an onboarding email workflow that starts off with a welcome email. Workflows can be as simple as a few emails, or they can be complex and have multiple scenarios. By creating these workflows, marketers can save time and ensure that customers receive timely and relevant information. Workflows can be triggered by customer action or set to be sent a certain period of time after the previous email, making them a highly flexible tool for businesses of all sizes.