By default, only admins can access WP Popups settings and functionality. If you want to allow other users to access your popups you will need to edit your theme’s functions.php file and add the following code:
// WP Popups allow editors to edit popups add_filter( ‘wppopups/manage_capability’, function(){ return ‘edit_others_posts’;} );
This function changes the default capability needed for managing WP Popups plugin which is set by default to ‘manage_options’.
You can get a list of roles and capabilities in the WordPress codex.