Creating temporary cases on a case type rule form
To complete your very specific business scenario, you can create temporary cases on a case type rule form in Dev Studio for case types that include the Create stage. Temporary cases help you save database resources because the system does not store any data information about such cases until they become persistent.For example, you can create a temporary case that at run time starts when a customer opens a portal to search for a flight to book. Then you can configure the system to persist the case only after the customer clicks a button to book a flight.
In the navigation pane of Dev Studio, click Case types, and then click the case type that you want to open.
Click the Advanced tab.
In the Temporary case (Deprecated) section, select the Create temporary case that is not saved until a 'Persist case' step is reached check box.