Mailchimp is an email marketing software which you can use to reach out to your customers and boost your sales.
Add the ability to choose Mailchimp tag when adding a contact via other method.
Can you add the ability to remove a user from a list when they are subscribed to another list? Mailchimp doesn't have a feature to do this internally. Here's the feature in Zapier: zapier.com/apps/mailchimp/integrations/mailchimp/1280/remove-mailchimp-list-members-when-they-are-added-to-a-different-list