MDX - Help with IIF syntax

Question

I have a member in Accounts named 'Marketing' that needs a MDX formula with this logic:
If the current member in the Market dimension is an idescendant of 'Total_Markets'
Then
[Corp_Level] * ( [Sales] / ( [Sales] , [Total_Markets] ) ) , [Corp_Level] )
Else
Just return the current value in 'Marketing'.
I'm trying:
IIF ( [Market].CurrentMember IS [Total_Markets].Descendants,
[Corp_Level] * ( [Sales] / ( [Sales] , [Total_Markets] ) ) , [Corp_Level] ) , [Marketing] )
Getting this error... I'm probably way off.....
Error(1260052) - Syntax error in input MDX query on line 1 at token 'Descendants' Marketing

Answer 1

Glenn,
I tried that yesterday. There is absolutely no help anywhere on how to properly format my query. I must include 'basis' in my MaxL somehow and I couldn't find a single example of how to construct the MaxL properly. I'm so frustrated as I understand MaxL and CrossJoin but the link you sent is just not resonating for whatever reason. Here's my atttempt at that.
login 'admin' 'epmtestdrive' on localhost;
execute allocation process on database ASOAlloc.ASOAlloc with
pov "Crossjoin(Descendants([Year],[Year].levels(0)),
Crossjoin(Descendants([Product],[Product].levels(0)),
Descendants([Scenario],[Scenario].levels(0))))"
amount "([Corp_Level])"
/* amount "([Sales],[Total_Markets])" */
target ""
range "([Marketing] )"/* ,[Payroll],[Miscellaneous])" */
/* range "CrossJoin({[Marketing],[Payroll],[Miscellaneous]},
Descendants([Total_Markets],[Market].levels(0)))" */
basis           "([Sales], [Total_Markets])"
share;
logout;