need help with this rpg application

Imagine an application for entering client information to create
transactions. Users have been granted their wish to create
transactions with very little controls by using a "sandbox". Basically
they've been given a library containing copies of all the necessary
production files. That way they can create as much as they like with
the information they have as soon as it becomes available. Now for the
hard part: If the transaction is accepted, the user needs to be able
to select it in a subfile, which will then take them to the normal
creation application I mentioned at the start. At this point, the
library list will have changed to the normal production environment,
so that the sandbox files are no longer on line. The application will
display several screens before finalising the transaction. Each screen
needs to be populated with the information available in the sandbox,
the user completing the missing information. The idea is that the user
will not have to retype all the information on all the screens.

It has been suggested to call the application in a separate activation
group after having copied the sandbox information to the production
files. In case of abandoning the transaction, the application already
knows how to delete the information from the database.

Copying the uncontrolled sandbox data to the production files just
doesn't seem right to me, even if it can be successfully deleted and
even though the user will have to correct any incorrect data. Has
anyone another idea how this might be achieved? What about a special
file containing all the information from the sandbox files? Is that
possible?