Rolling Average of past 1 year not working when I put "MMM YYYY" field

[Anonymous]

I have created a measure for a rolling average of SumofSales(Measure) for past 1 year. the below code is working great as long as I keep the 'Sales_Data[EndofMonthDate]' field in the table visualisation. Because I want to visualize the data by Month and Year and If I want to see it by 'Sales_Data[MonthYear]'(which is MMM YYYY Format) it is not working.  I tried so much and could not complete it. Can anyone please help?

MovingAverageofTotalSales =
AVERAGEX (
    DATESINPERIOD (
        Sales_Data[EndofMonthDate],
        MAX ( Sales_Data[EndofMonthDate] ),
        -1,
        YEAR
    ),
    [SumofSales]
)

[v-lionel-msft · Accepted solution]

Hi @Anonymous ,

Even if I changed the format of the date column, it will not affect the result of the measure. Dates in different formats are just different in visual effect.

Could you share a sample data and the formula of [SumofSales]?

Best regards,
Lionel Chen

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[Anonymous]

Wow! I tried the format the date field as MMM YYYY and then it worked for me! Thankssomuch!! @v-lionel-msft 

Previously I have changed the Sales_Data[EndofMonthDate] as categorical in x-axis and removed hierarchy then it showed the month end dates in the x-axis. But what I wanted was to see Month and Year just in MMM YYYY format. For this I created a separate calculated column on date as below:

MonthYear = FORMAT((Sales_Data[EndofMonthDate]),"MMM") & " " & YEAR(Sales_Data[EndofMonthDate])

but now I changed the format of the field Sales_Data[EndofMonthDate] into MMM YYYY as you have shown below and also put categorical in x-axis . It worked now.

and below is the sum of sales that I am doing and I hope this is correct. let me know.

SumofSales = CALCULATE(SUM(Sales_Data[Total Sales]))

Thank you so much again @v-lionel-msft 

Regards,

gcp