Only sign up to MC when order completed and product_id

Sorry for the delay in my reply.

This is possible by hooking into the ‘ss_wc_mailchimp_subscribe_options’ action filter where you could evaluate the product purchased and set the listid on the passed $subscribe_options you get passed in the action filter which looks like this:

$subscribe_options = array(
‘listid’ => $listid,
’email’ => $email,
‘vars’ => $vars,
’email_type’ => ‘html’,
‘double_optin’ => $this->double_optin == ‘no’ ? false : true,
‘update_existing’ => true,
‘replace_interests’ => false,
‘send_welcome’ => false
);

Marking as solved.