Hello Brajesh,

The stated code did not work it was this code stated below that worked

 /**
 * Set default activity directory tab for BuddyPress
 */
function buddydev_set_default_activity_directory_tab() {
    // If user is not logged in or
    // If the scope is already set, do not do anything ok.
    if ( ! is_user_logged_in() || isset( $_COOKIE['bp-activity-scope'] ) ) {
        return ;
    }
    // additional check for activity dir
    if ( ! bp_is_activity_directory() ) {
        return ;
    }
    $tab = 'following'; // 'all', 'friends', 'groups', 'mentions'
    // Set scope to our needed tab,
    // In this case, I am setting to the 'friends' tab
    setcookie( 'bp-activity-scope', $tab,null, '/' );
    $_COOKIE['bp-activity-scope'] = $tab;
}
add_action( 'bp_template_redirect', 'buddydev_set_default_activity_directory_tab' ); 

and I also applied the second code like this

 <?php if( ! is_user_logged_in() ) :?>
		
			<?php do_action( 'bp_before_activity_type_tab_all' ); ?>

			<li class="selected" id="activity-all"><a href="<?php bp_activity_directory_permalink(); ?>" title="<?php esc_attr_e( 'The public activity for everyone on this site.', 'klein' ); ?>"><?php printf( __( 'All Members <span>%s</span>', 'klein' ), bp_get_total_member_count() ); ?></a></li>

			<?php endif;?> 

Hello Brajesh,

I got it to work by editing the /buddypress/activity/index.php and removing the (all members) code. I later copied the edited file into my theme and applied the code stated below, now all logged in users are automatically viewing activities of people their following.

 /**
 * Filter sitewide activity to list following user's activity.
 *
 * @param array $args args.
 *
 * @return array
 */
function buddydev_custom_list_activities_filter( $args ) {
	if ( ! is_user_logged_in() || ! bp_is_members_directory() ) {
		return $args;
	}

	// for logged in user, change scope to following.
	$args['scope'] = 'follow';

	return $args;
}

add_filter( 'bp_after_has_activities_parse_args', 'buddydev_custom_list_activities_filter' ); 

The only bad effect is that it removed (all members) tab for logged out user, so I was forced to block access to site wide activity page for logged out users.

Thank you

I also changed my theme to wordpress tweenty fourteen theme and the problem still occurs.

I also tried this code you provided and I got the same result which is the filter keeps changing back to (all members) when I click on the status update form(what’s new form)

/**
 * Set default activity directory tab for BuddyPress
 */
function buddydev_set_default_activity_directory_tab() {
    // If user is not logged in or
    // If the scope is already set, do not do anything ok.
    if ( ! is_user_logged_in() || isset( $_COOKIE['bp-activity-scope'] ) ) {
        return ;
    }
    // additional check for activity dir
    if ( ! bp_is_activity_directory() ) {
        return ;
    }
    $tab = 'following'; // 'all', 'friends', 'groups', 'mentions'
    // Set scope to our needed tab,
    // In this case, I am setting to the 'friends' tab
    setcookie( 'bp-activity-scope', $tab,null, '/' );
    $_COOKIE['bp-activity-scope'] = $tab;
}
add_action( 'bp_template_redirect', 'buddydev_set_default_activity_directory_tab' );

Ok this will work, all I have to do is create a new custom user role and automatically assign the role with the necessary member types. So when a new user registers as either a brand or business his role will automatically be registered as the custom role. You can paste the code.

Thank you very much for your help I really appreciate your effort.