If you do customization on Nopcommerce, is is true that if you upgrade from version 1.9 to 2.3, all customizations done to the site will be lost?
System Information
nopCommerce version: 1.90 Operating system: Microsoft Windows NT 6.1.7600.0 ASP.NET info: v4.0.30319 Is full trust level: True Server time zone: Mountain Standard Time