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When writing rules in the consolidation routine, we need to start by opening the current data unit. Specifically, we need the full set of data for all accounts, ICP, and custom dimensions for the current Parent Total member. Fortunately, HFM provides a function to give us that information.
If you do not specify any of the arguments, the OpenDataUnit returns the current point of view. And as you can see in the preceding example, we want to take that set of data and store it into a variable called DataUnit. A nice feature of being able to call other data units is that we are able to view data from other entities and periods, and so on, and loop through them.