Consolidations Planning using BCS PCtr 'Entire Hierarchy time dependant'

Hi All,

We are doing CONS planning using BCS Profit Center and this infoobject has the 'Entire Hierarchy time dependant' property and we have two hierarchies one for 2010 and one for 2011.

If '0PLANDAT' variable used for the 'Key Date' in the Input Ready Query prooerties, would it take care of bringing up the hierarchy appropriately depending the Plan Year (Fiscal Year) or the period chosen for the planning.

Is there some place I can find the documentation and the logic for the '0PLANDAT' SAP Exit variable?

Thanks in advance,

- Shashi