There are ways to perform document-level transactions using optimistic or pessimistic locking, in our experience so far this has been sufficient for purchase tr

There are ways to perform document-level transactions using optimistic or pessimistic locking, in our experience so far this has been sufficient for purchase tracking. I imagine our perspective will mature as we get the system into higher load scenarios. One of the reasons we decided to delay code release is that we need more time/resources to get it ready for the different ways developers will try to use it early on.