Solved: Error with PREVIOUSMONTH with calculated column - Page 2

yolanda_meng · ‎10-12-2018

Has anyone noticed a difference today on PowerBI.com around the PREVIOUSMONTH function?

We have a DirectQuery report that is using this function, the month part was a calculated column from a date field, it was working fine on PowerBI.com for long time. Today we started to notice that the chart with this function was broken, after testing, we realized it was the incompatibility of the function with a calculated column - the error went away after we switched to a non-calculated column.

The calculated month column: Month = DATE(YEAR(Query1[CreatedDate]),MONTH(Query1[CreatedDate]),1)

The measure with PREVIOUSMONTH: TEST = CALCULATE(COUNT(Query1[ClientId]),PREVIOUSMONTH(Query1[Month]))

Please provide any feedbacks or any thoughts, thanks a lot!

henriquesilveir · ‎10-16-2018

@yolanda_meng i got bad news. Now the PREVIOUSMONTH is not supported into Directquery.

take a look in this article, and you will see: "This DAX function is not supported for use in DirectQuery mode. For more information about limitations in DirectQuery models, see http://go.microsoft.com/fwlink/?LinkId=219172."

After your see this article i reccomend you to see the second link, to see all limitations with DAX. It has been changed probally in this last update.

don't forget to mark this post as solution, other people can have the same situation in the future.

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Error with PREVIOUSMONTH with calculated column

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