MDX ParallelPeriod with Multiple Calendars

Question

Hello,
I have a bit of a unique situation here. The cube has multiple Calendars, in that there is a M2M relationship of the standard date dimension to create the ability to have multiple different calendars (14-ish).
The problem I now have is trying to do parallel period calculations, e.g. the typical previous year calc:
(ParallelPeriod([Calendar].[Calendar].[Year],1,[Calendar].[Calendar].CurrentMember),[Measures].[MyTotal])
Is spanning multiple calendars
e.g. assume in the calendar dimension I have Calendars A, B and C
Each Calendar has 3 years of data, 2013, 2014 and 2015.
You would expect for Calendar C, Year 2013, the Previous year total to be Null or 0, however it is grabbing the total for Calendar B year 2015.
Is there a way to restrict this, so it only looks at the current calendar name selected?

Answer 1

Hi BeardyMan,
According to your description, you want to have the total measure to show different value depends on different calendar in date dimension. Right?
In this scenario, I suggest you using SCOPE() statement to limit different measure under different scope. Please refer to sample below:
Scope
[Date].[Fiscal].CurrentMember,
[Date].[Fiscal].[Month].Members,
[Measures].[My Total]
This = 0 ;
End Scope ;
Scope
[Date].[Calendar].CurrentMember,
[Date].[Calendar].[Month].Members,
[Measures].[My Total]
This = ParallelPeriod
[Date].[Calendar].[Fiscal Year], 1,
[Date].[Calendar].CurrentMember
End Scope ;
Reference:
SCOPE Statement (MDX)
Best Regards,
Simon Hou
TechNet Community Support