A persistent CFC can have various methods and if these methods are present, callbacks can be sent on those events to the CFC. The CFC can then handle these events. In this case, the event for entity persistence comes to the CFC that the system loads, inserts, updates, or deletes. These methods are:
postUpdate (): This method is called after the update operation is complete.
When you call the EntitySave() method on an object that is not loaded using EntityLoad(), it gets updated but the intercepter call fails. This happens because an empty map is created for the object and there is no previous data associated with it.