An important point to note is that Business Object Types should not contain entities that consist of runtime data. To avoid this scenario, entities should be designed to either contain runtime data or administrative (configuration) data. The former (runtime entities) should not be transported via CTM, and so should use primary keys generated by the standard Key Server; that is, they should not use primary keys generated by the RAKS. The latter (administrative entities) can be transported, and so must use primary keys generated by the RAKS.