Automating the process of adding new Microsoft Dynamics CRM contacts to a Mailchimp list can help nurture clients and foster customer loyalty without extra tasks for sales representatives. This is achieved by creating an automated workflow called a Zap using Zapier's workflow automation software, which sends information from one app to another. The user sets up a trigger in Microsoft Dynamics CRM and an action in Mailchimp, mapping data fields to send the new contact's email address to Mailchimp. Once tested and reviewed, the Zap is ready to use, automatically adding new contacts to the desired Mailchimp audience list without manual intervention.