By default, we do not have this option. You can use the following function code. Please see the steps below:

Note: Make sure to have a complete site backup before proceeding

    1. Go to Appearance - Theme Editor.

    2. Under Select theme to edit, choose (BuddyBoss Child/whatever theme is active), then click Select.

    3. Below Theme Files, select Theme Functions (functions.php).

    4. Append the code just before the closing PHP tag “?>”:

add_action('wp_footer', 'modify_group_notify_members_checkbox');

function modify_group_notify_members_checkbox() {
    ?>
    <script>
        document.addEventListener('DOMContentLoaded', function() {
            var checkbox = document.getElementById('group-notify-members');
            checkbox.removeAttribute('checked');
        });
    </script>
    <?php
}

    5. Click Update File to save the changes.

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

Screenshots

Without Code:

With Code: