Contiguous date problem with Country filter

[Anonymous]

Hello,

In my current project, I have following three tables:

1) date dimension table where I have dates for everyday since 2019

2) country master table

3) website data table (which has a many-to-one relationship both with the date dimension and country master table)

I have put two filters: one filter to select date (from the date dimension table) and a second filter to select country (from the country master table). In-order to calculate YTD, I am using the function SAMEPERIODLASTYEAR. Everything works fine when the country filter is deselected. As soon as I select the particular country then it shows the following error:

I tried to follow the following link (also tried several things i.e.

IF(HASONEVALUE(Dates[Financial Year]),FIRSTDATE(DATEADD(Dates[Date], -1, YEAR)),BLANK())

) but didn't get any solution so far. Any help would be great! Thank you!

Ref: https://p3adaptive.com/2014/01/defanging-the-contiguous-date-selections-error/

[Greg_Deckler]

@Anonymous Do you have a date table with contiguous dates? Personally, I don't recommend using TI functions and just using non-sugar syntax functions instead. For example, if you want the first date a year ago, you can simply use. DATE([Financial Year]-1,1,1) for example. 

You may find this helpful - https://community.powerbi.com/t5/Community-Blog/To-bleep-With-Time-Intelligence/ba-p/1260000

Also, see if my Time Intelligence the Hard Way provides a different way of accomplishing what you are going for.

https://community.powerbi.com/t5/Quick-Measures-Gallery/Time-Intelligence-quot-The-Hard-Way-quot-TITHW/m-p/434008

[Anonymous]

Dear @Greg_Deckler ,

First of all, thank you so much for the help!

I tried your solution I created a column with DATE([Financial Year]-1,1,1) function and its returns 01/01/2020. but I am using the financial year which should be 01/04/2020. and also i can not select DATE([Financial Year]) column in measure so I creat a column. so how can we gain financial year do you have any idea?

[Greg_Deckler]

@Anonymous Ah, well if you are using a financial year then I would definitely avoid TI functions as they are designed specifically to work with a standard Gregorian calendar, which essentially makes them next to useless. So, the answer to your question lies in how good of a financial calendar you have. Can you provide a sample of your financial calendar? Do you have a column in your financial calendar that is the day of the year for the financial calendar? For example, 1/4/2020 would have a value of 1, 1/5/2020 would be 2 and so on. If you have that then the answer is essentially a LOOKUPVALUE or MAXX(FILTER()) situation such as:

MAXX(FILTER('Dates',[Year] = [Financial Year] - 1 && [Day of Year] = 1),[Date])

[Anonymous]

Dear @Greg_Deckler ,

Basically i am calulating percentage diffrence with respect to last year.

for that i have created this measure : 

%ChangeSessions =

var cp = SUM('Website Performance'[Sessions])

var pp = CALCULATE(SUM('Website Performance'[Sessions]), DATESBETWEEN(Dates[Date], [StarOfLastYear], [EndOfLastYear]))

Return

DIVIDE((cp - pp), pp, 0)

StarOfLastYear = FIRSTDATE(SAMEPERIODLASTYEAR(Dates[Date]))

EndOfLastYear = [StarOfLastYear] + [DaysInThisPeriod] - 1

DaysInThisPeriod = DATEDIFF([StartOfThisPeriod], [EndOfThisPeriod], DAY) + 1

StartOfThisPeriod = FIRSTDATE(Dates[Date])

EndOfThisPeriod = LASTDATE(Dates[Date])

 to find out last year change to this date in my case 01/04/2021-30/08/2021 to 01/04/2020-30/08/2020

my date table is like this : 

It works perfectly fine without a country filter but when I add country filter its shows this error

[Greg_Deckler]

@Anonymous Can you change the relationship cross-filter direction to Single from Both? Also, I would add this column to your financial calendar:

FiscalDayOfYear = 
  VAR __Date = [Date]
  VAR __FinancialYear = [Financial Year]
RETURN
  COUNTROWS(FILTER('Dates',[Financial Year]=__FinancialYear && [Date]<=__Date))

[Anonymous]

both have single connection

my main country table : 

I have added a new column to my date table 

[Anonymous]

@Greg_Deckler could you please guide me ?