Subtract from Parent in Entity dimension

Question

Hi all
I am currently implementing SAP BPC project to replace Hyperion Enterprise. There is an option in Hyperion Enterprise in Entity dimension where you can specify an entity (child or parent node) to be subtracted from its parent rather than the natural way of adding in SAP BPC. I know in SAP BPC, the natural way the hierarchy works is that all the base level nodes are added to its parent level which in turn are added to its parent level and so on and so forth.
I was wondering if there is a way to accommodate "Subtract from parent" functionality of Hyperion Enterprise in SAP BPC. One way I can think of is to write a script logic to multiply the numbers submitted to that entity by -1 which will make sure that we are subtracting this entity while rolling up.
Does anyone know of a better way?
Please let me know.
Thanks,
Ameya Kulkarni

Answer 1

Exactly as Tim says, there's a member property you can add (called UNARYOPERATOR, must use that name, inApp, length 1) that takes a value of one of the following:
+    (this adds up the member to its parent -- same as if you didn't add this property)
-     (subtracts this member from its siblings, in computing the parent)
*     (multiplies it)
/     (divides it)
~    (ignores this member)
I've never used multiply or divide. The tilde is helpful for skipping the NBV accounts from the fixed assets on the balance sheet, where you can't double-count the original book less accum depreciation, AND the NBV. But every chart of accounts has all those accounts in there.
This property should probably work in any dimension with a hierarchy. Or almost any -- I'd be surprised if Time would be able to multiply October times November??? But anyway for simple stuff, it should work.
Or you can use a member formula on the parent, which would be
OtherChild1 + OtherChild2 - SpecialChosenChild
A script logic approach will also work, but it means a lot of extra calculations and data, which you should avoid if possible. I think to get the results you want, you'd follow Tim's approach, except the logic needs to post a factor of -2 (not -1) to the shadow member, to get a net result of a negative impact on the parent. A factor of -1 would give a net result of zero.
Hopefully the unaryoperator or formulaH1 will work.