When customer transport requests are included in an update procedure performed on a customer-customizable business software architecture, versioning of the objects and other features imported via such transport requests can require an extended period of business downtime using conventional methods. Additional downtime can result if the objects of the customer transports are not automatically generated. Consistent with features described herein, versioning can be done for many object types in a second shadow system or instance during uptime. The generation of objects in the customer transports can also done in the second shadow system or instance during uptime.