add_filter( 'login_redirect', 'login_redirect_shop_manager_on_orders_list', 10, 3 );
function login_redirect_shop_manager_on_orders_list( $redirect_to, $request, $user ) {
$defined_user_role = 'shop_manager'; // The defined user role
if( isset($user->roles) && is_array($user->roles) && in_array( $defined_user_role, $user->roles ) ) {
$redirect_to = admin_url('edit.php?post_type=shop_order'); // Custom redirection url
wp_safe_redirect( $redirect_to ); // Force redirection
exit(); // Mandatory to avoid errors
}
return $redirect_to;
}