By default, the platform does not have this option. You can use the following JavaScript code to add a message on the Activation Code Page. 

Please follow the steps below:

1. Go to BuddyBoss > Theme Options

2. Under Custom Codes, enable JavaScript

3. Append the following:

jQuery(document).ready(function($) {

    // Select the paragraph containing the original sentence

    var $paragraph = $('div#register-page aside.bp-feedback.bp-messages.info p');

    // Append the new sentence

    $paragraph.append(' Please also check your spam folder.');

});

4. Save changes.

Note: Any modifications are considered custom work already. Know more about our Support policy here: https://www.buddyboss.com/support-policy/