The other systems in the system landscape must initially contain the same business object data as the production system. That is, the administrative configuration data on the other systems in the system landscape must start out as being the same as that on the production system. This is both so that changes can be made to pre-existing business objects on the other systems in the system landscape and so that any testing carried out on the development system or test system is valid.
To this end, the production system data for the entities that form the business objects needs to be copied over to the other systems in the system landscape before the other systems are first started. These entities are listed in Appendix A - Appendix per Business Object . It is recommended that this copy is made during scheduled maintenance time, when the production system is offline. This will help in ensuring that no new business object data is created on the production system before the other systems are started.