You can use our Step templates to guide you through the integrations. You can find step templates in Workflows > + Add step > Integrations > Templates > 3rd party templates > Mailchimp.
  1. In Mailchimp, generate your API key. You can find the details here.
  2. You’ll be sending the email using a message template. Review the Mailchimp documentation to learn about the related API parameters.
  3. In Next Matter select the workflow that should trigger a Mailchimp message, and add a new integration step.
  4. Click Settings and enter the following details:
    • Method: POST
    • URL: https://mandrillapp.com/api/1.0/messages/send-template
    • Headers: Content-Type: application/json
    • Body might look like the following: 
      {
	"key": "PLACEHOLDER_FOR_MAILCHIMP_API_KEY",
	"template_name": "PLACEHOLDER_FOR_TEMPLATE_NAME",
	"template_content": [
	{
        	"name": "PLACEHOLDER_FOR_MC_EDIT_REGION",
		"content": "PLACEHOLDER_FOR_CONTENT_TO_INJECT"
	}],
	"message": {
		"html": "PLACEHOLDER_FOR_MESSAGE_IN_HTML", //optional full HTML content to be sent if not in template
		"text": "PLACEHOLDER_FOR_MESSAGE_TEXT", //optional full text content to be sent
		"subject": "PLACEHOLDER_FOR_SUBJECT",
		"from_email": "PLACEHOLDER_FOR_SENDER_EMAIL",
		"from_name": "PLACEHOLDER_FOR_SENDER_NAME",//this is optional
		"to": [ {
        		"email": "PLACEHOLDER_FOR_RECIPIENT_EMAIL",
			"name":"PLACEHOLDER_FOR_RECIPIENT_NAME",//optional
			"type": "to"//you can enter bcc or cc here
		}]	
            } 	
}
  5. Save your changes.
To learn more about Mailchimp email format (plain text and HTML), see Mailchimp documentation.