Migration of cart layouts Service catalog enables you to configure cart layouts to add, remove, or change elements of the service catalog shopping cart. Only a user with an admin role can migrate cart layouts. This feature is enabled by default and default cart layout settings implemented. For upgrades, an upgrade script checks to see if your current cart macros are customized. If cart macros are not customized, cart layout configuration is enabled by default. If cart macros are customized, cart layout configuration is disabled. Migrate your system to use this feature. Review of cart layout settingsBefore you migrate your system to use cart layouts, familiarize yourself with existing configurations for catalog content and decide whether to discard or retain these configurations.Migrate customizations to cart layoutsMove customization to cart layout widgets before you enable cart layouts.Enable the cart layoutsEnable the cart layouts after you review configuration settings and migrate any customized macros.