SAP BPC - Recursive Dimension Member Formulas

Question

Hi BPC community,
We have a customer requirement to create recursive dimension member formulas.  Has anyone dealt with this topic before?
Example:
Account A = Account B * .05
Account B = Account A + Account C.
Account D = Account B * .10
Thanks,
Jeff Holdeman
EPM RIG

Answer 1

Hi Nicolas,
Thanks for pointing us in the right direction.  The math actually turns out a little different, as I think you slipped a decimal.  But none the less, your contribution is MUCH appreciated.
Here is the proposed solution.  For more details, we also need to utilize the solve_order parameter to force the system to calculate the dimension formulas in the proper sequence.  Zero is the highest priority.
Assume...
A = B * .05
B = A + C
C = input
D = B * .10
Therefore solving for B...
B = (B * .05) + C
B = .05B + C
B - .05B = C
.95B = C
B = (1 / .95) * C
And...
D = (1 / .95) * C * .10
For example, if C = 100...
B = (1 / .95) * 100 = 105.26
A = 105.26 * .05 = 5.26
D = 105.26 * .10 = 10.53
I'll assume there are two accounts for "C"; one for input and one as a formula.
[Account].[C] = [Account].[C input][, solve_order = 1]
[Account].<b> = [Account].[C] * 1 / .95[, solve_order = 2]
[Account].[A] = [Account].<b> * .05[, solve_order = 3]
[Account].[D] = [Account].<b> * .10[, solve_order = 4]
Edited by: Jeffrey Holdeman on Aug 11, 2008 5:58 PM