SSAS - Moving Annual Total

Environment: SQL-Server-2005, SSAS 2005

I am using the following formula to create a Moving Annual Total

SUM ({[Time].CurrentMember.Lag(3):[Time].CurrentMember}, [Measures].[TRx Quantity]开发者_JAVA百科)

The same column [Measures].[Trx Quantity] is used in other calculations and it works fine. This one, however, comes up with #Value! to indicate some kind of an error. Can anyone point me in the proper direction here?

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Is this SSAS 2005/2008?

If it is either of these and you are running this in Management Studio you can hover over the #Value and get the details of the error.

But at a guess it is most likely because .CurrentMember needs to be called on a hierarchy and [Time] is a dimension reference. It should refer to one of the hierarchies like [Time].[Calendar].CurrentMember or maybe [Time].[Quarter].CurrentMember

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It turned out to be that I was missing the MONTH

SUM ({[Time].[Month].CurrentMember.Lag(3):[Time].[Month].CurrentMember}, [Measures].[TRx Quantity])