Default BuddyPress Notification Settings

bp-default-notification-settings.php

<?php
add_action( 'bp_core_activated_user', 'bpdev_set_email_notifications_preference');
 
function bpdev_set_email_notifications_preference( $user_id ) {
 
    //I am putting all the notifications to no by default
    //you can set the value to 'yes' if you want that notification to be enabled.
    $settings_keys = array(
        'notification_activity_new_mention'         => 'no',
        'notification_activity_new_reply'           => 'no',
        'notification_friends_friendship_request'   => 'no',
        'notification_friends_friendship_accepted'  => 'no',
        'notification_groups_invite'                => 'no',
        'notification_groups_group_updated'         => 'no',
        'notification_groups_admin_promotion'       => 'no',
        'notification_groups_membership_request'    => 'no',
        'notification_messages_new_message'         => 'no',
    );
 
    foreach( $settings_keys as $setting => $preference ) {
 
        bp_update_user_meta( $user_id,  $setting, $preference );
    }
 
//that's it. have fun!

}
?>