Frustrated With Time Intelligence

[NeilL]

Greetings,
I have a seemingly simple need but cannot seem to figure it out and have been racking my brain for days - DAX and I are not getting along.

I'm connected to my data from Dynamics365. Using the opportunities[est...date] field I need to add a duration (months).

First, I take the date and perform a STARTOFMONTH() calculation then add 2 months and store in a measure. I've got this.

[est...date] = 1/10/2020

mthlyRevBegin = STARTOFMONTH(DATEADD(opportunities[est...date].[Date],2,MONTH))

mthlyRevBegin = 3/1/2020

Here's my issue. I need to add 10 months to the [est...date] and then subtract 1 day to capture 10 whole months. PowerBI doesn't seem to let me nest DATEADD() or other functions nor can I use a measure within it.

Currently I have tried each of these:

mthlyRevEnd = EDATE([mthlyRevBegin],max(opportunities[kbdg_estdur])) ... gives 1/1/20201

mthlyRevEnd = ENDOFMONTH(DATEADD(opportunities[estimatedclosedate].[Date],10,MONTH)) ... gives the error below.

My end result for this scenario should be mthlyRevEnd = 12/31/2020.

What am I missing? Any help is appreciated.

[VasTg]

@NeilL 

Are you trying to get end of year(ENDOFYEAR) date? Is it a measure or calculated column?

[NeilL]

@VasTg 
Thanks for the quick reply. I am not trying to get the end of year, only the end of the month; it just so happens the example I provided in the initial post falls on 12/31/2020.

Better examples of dates I might encounter:

Est...date = 2/12/2020

Duration = 6 months

mthlyRevBegin = 4/1/2020

mthlyRevEnd = 9/30/2020

Est...date = 3/14/2020

Duration = 14 months

mthlyRevBegin = 5/1/2020

mthlyRevEnd = 6/30/2021

[v-kelly-msft · Accepted solution]

Hi @NeilL ，

First create a calendar table.(Be sure the table contains enough dates you need for calculation)

Modify the measure to below:

mthlyRevEnd = ENDOFMONTH(DATEADD(calendar table[estimatedclosedate],10,MONTH))

Dont use .date for calculation,and be sure that your calculation dont exceed your calendar date.

Here is a blog about time intelligence,hope it would help.

Best Regards,
Kelly

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