Custom User Role can’t access backend

I added a new User Role, and the Users with that rule can’t access the backend. Error: “You are not allowed to access this page.”
This is how I add the Role:

global $wp_roles;
    if ( ! isset( $wp_roles ) ){
        $wp_roles = new WP_Roles();
    } 

    $editor = $wp_roles->get_role('editor');

    $wp_roles->remove_role('marketing_staff');

    if(class_exists('WooCommerce')) { //in my case, WC is installed, but it's no difference if i add the editor alone or shop manager only or additional.
        $shop_manager = $wp_roles->get_role('shop_manager');
        $wp_roles->add_role('marketing_staff', 'Marketing Staff', array($shop_manager->capabilities, $editor->capabilities) );
    } else {
        $wp_roles->add_role('marketing_staff', 'Marketing Staff', array($editor->capabilities) );
    }

• This topic was modified 5 years, 5 months ago by teresasumisu.
• This topic was modified 5 years, 5 months ago by teresasumisu.