How to Install Mailchimp and Constant Contact Integration Plugin, Manually
Upload or extract the mailchimp and constant contact integration folder to your site’s /wp-content/plugins/ directory. You can also use the Add new option found in the Plugins menu in WordPress.
Enable the plugin from the Plugins menu in WordPress.
Usage
Go to WooCommerce > Settings > Integration.
Select the service you want to use.
If you chose Mailchimp:
Set your MailChimp API Key and hit save. Select your MailChimp list;
input text which will be displayed in the checkbox on the checkout page and hit save.
If you chose Constant Contact:
Set your Constant Contact API Key, Access token and hit save. Select your Constant Contact list;
Input text which will be displayed in the checkbox on the checkout page and hit save.
Now customers who select checkbox will be subscribed to the selected list in MailChimp/Constant Contact.
Video
Screenshots
Plugin Not Working?
If any errors or problems with the plug-in then write comments.
