Disable desktop notification

Hi,

I am not sure which multi-vendor plugin!

If you are using WooCommerce Multi-vendor marketplace (https://wordpress.org/plugins/wc-multivendor-marketplace/), then you may easily control this from WCFM Admin Setting -> notification Setting

otherwise, add this code to your child theme’s functions.php –

add_filter( 'wcfm_is_allow_notification_message', function( $is_allow, $wcfm_messages_type, $message_to ) {
	if( $wcfm_messages_type == 'order' ) $is_allow = false;
	return $is_allow;
}, 750, 3 );

Thank You