Add-on WooCommerce MailPoet 3 Pro
If you have more than one newsletter list, customers can select which list to subscribe when making a purchase.
Decide if the checkbox/s to subscribe is checked or un-checked.
Place the subscription fields on the checkout page where you want them to be.
Custom checkbox label.
SETTING UP THE PLUGIN
To setup this plugin, go to “WooCommerce -> Settings” and then the MailPoet tab. The settings are in two sections. ‘General | Available Lists’
“General” contains the main settings for the plugin.
“Available Lists” contains a table listing of all your created lists. Select the lists you want your customers to subscribe to by ticking the checkbox next to the list and press ‘Save changes’.
That’s it, now when your customers tick the subscribe checkbox on the checkout page, they will be subscribed to the newsletter/s you selected when processing an order.