# Determine number of sessions conducted in the previous period

• ### Question

• Hi,

Imagine simple dataset of a Soft Skills Training Company.  The data has only two columns - Date and Organised By.  Organised By carries the Name of the Company where the training was conducted.  If there were 10 participants from a certain Company, there will be 10 rows with the same Date and Company Name.

The Financial Year of this Company runs from April to March.  There will be a slicer where the user will select any one Company.  Now imagine a Pivot Table, where Financial Years are dragged to the column labels and the user selects 1 Company in the slicer.  By using the following formula, one can easily compute the sessions conducted in every Financial Year.  So no problem so far.

`=DISTINCTCOUNT(Sessions[Date])`

I now want to compute the sessions conducted in the previous period.  Since, for the chosen Company, sessions may not be conducted in every FY, I cannot use the PREVIOUYEAR() function to compute the sessions conducted in the previous period.  To compute the sessions conducted in the previous period, I wrote the following measure but the return value is "Date on which the last session was conducted prior to the current FY".  I want the measure to return "Sessions conducted in the previous period".  Here's my failed attempt:

`=if(ISNUMBER([Sessions conducted]),CALCULATE(CALCULATETABLE(LASTNONBLANK(Sessions[Date],[Sessions conducted]),DATESBETWEEN('calendar'[Date],DATE(2007,4,1),MIN('calendar'[Date])-1))),BLANK())`

You may download the workbook from here.  I have shown my expected answer in the yellow row.

Regards, Ashish Mathur Microsoft Excel MVP www.ashishmathur.com

Sunday, July 2, 2017 2:51 PM

• Hi,

I solved my problem.

Here is the measure I wrote for "Last date of session conducted in previous period".  The result of this measure is the last date.

`=if(ISNUMBER([Sessions conducted]),CALCULATE(CALCULATETABLE(LASTNONBLANK(Sessions[Date],[Sessions conducted]),DATESBETWEEN('calendar'[Date],DATE(2007,4,1),MIN('calendar'[Date])-1))),BLANK())`

Here is the measure I wrote to determine the first date of the FY in which the previous session was conducted

`=if(HASONEVALUE('calendar'[Financial Year]),if(ISNUMBER([Sessions conducted]),if(MONTH([Last date of session conducted in previous period])<=3,IFERROR(DATE(YEAR([Last date of session conducted in previous period])-1,4,1),BLANK()),DATE(YEAR([Last date of session conducted in previous period]),4,1)),BLANK()),BLANK())`

Here is the measure I wrote to determine the last date of the FY in which the previous session was conducted

`=if(ISBLANK([First date of FY in which the last session was conducted]),BLANK(),if(HASONEVALUE('calendar'[Financial Year]),if(ISNUMBER([Sessions conducted]),EDATE([First date of FY in which the last session was conducted],12)-1,BLANK()),BLANK()))`

Here is the measure I wrote for computing the number of sessions conducted in the previous period

`=if(HASONEVALUE('calendar'[Financial Year]),if(ISBLANK([Last date of session conducted in previous period]),BLANK(),if(ISBLANK([Sessions conducted]),BLANK(),CALCULATE([Sessions conducted],DATESBETWEEN('calendar'[Date],[First date of FY in which the last session was conducted],[Last date of FY in which the last session was conducted])))),BLANK())`

Hope this helps.

Regards, Ashish Mathur Microsoft Excel MVP www.ashishmathur.com

• Marked as answer by Saturday, July 8, 2017 3:08 AM
Saturday, July 8, 2017 3:07 AM

### All replies

• Hi Ashish,

You may create a calculated column called [FY] as below, and change the data type to whole number:

`[FY]:=LEFT('calendar'[Financial Year],4)`
Then you can create a measure called [Sessions conducted in PP] as below:
```[Sessions conducted in PP] :=
IF (
HASONEVALUE ( 'Sessions'[Organised by] ),
CALCULATE (
DISTINCTCOUNT ( 'Sessions'[Date] ),
FILTER ( ALL ( 'calendar' ), 'calenda'[FY] = MAX ( 'calenda'[FY] ) - 1 ),
VALUES ( 'Sessions'[Organised by] )
),
BLANK ()
)
```

Your expected result can not be achieved, we can only get the values as below:

Best Regards
Willson Yuan
MSDN Community Support
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Tuesday, July 4, 2017 6:24 AM
• Excel 2016 Pro Plus with PowerPivot and Power Query (aka Get & Transform)
With PQ generated fiscal calendar.
Sessions per FY only.
No attempt at "...previous period" since "Show values as ..." can be used.
http://www.mediafire.com/file/gwpwom4k36h1k6f/07_04_17.xlsx

Tuesday, July 4, 2017 7:01 PM
• Hi,

Thank you for replying.  That is not the answer I am expecting.  The number for FY 2015-16 should be 2.

Regards, Ashish Mathur Microsoft Excel MVP www.ashishmathur.com

Saturday, July 8, 2017 2:25 AM
• Thank you for replying.  I am looking at a PowerPivot solution.

Regards, Ashish Mathur Microsoft Excel MVP www.ashishmathur.com

Saturday, July 8, 2017 2:26 AM
• Hi,

I solved my problem.

Here is the measure I wrote for "Last date of session conducted in previous period".  The result of this measure is the last date.

`=if(ISNUMBER([Sessions conducted]),CALCULATE(CALCULATETABLE(LASTNONBLANK(Sessions[Date],[Sessions conducted]),DATESBETWEEN('calendar'[Date],DATE(2007,4,1),MIN('calendar'[Date])-1))),BLANK())`

Here is the measure I wrote to determine the first date of the FY in which the previous session was conducted

`=if(HASONEVALUE('calendar'[Financial Year]),if(ISNUMBER([Sessions conducted]),if(MONTH([Last date of session conducted in previous period])<=3,IFERROR(DATE(YEAR([Last date of session conducted in previous period])-1,4,1),BLANK()),DATE(YEAR([Last date of session conducted in previous period]),4,1)),BLANK()),BLANK())`

Here is the measure I wrote to determine the last date of the FY in which the previous session was conducted

`=if(ISBLANK([First date of FY in which the last session was conducted]),BLANK(),if(HASONEVALUE('calendar'[Financial Year]),if(ISNUMBER([Sessions conducted]),EDATE([First date of FY in which the last session was conducted],12)-1,BLANK()),BLANK()))`

Here is the measure I wrote for computing the number of sessions conducted in the previous period

`=if(HASONEVALUE('calendar'[Financial Year]),if(ISBLANK([Last date of session conducted in previous period]),BLANK(),if(ISBLANK([Sessions conducted]),BLANK(),CALCULATE([Sessions conducted],DATESBETWEEN('calendar'[Date],[First date of FY in which the last session was conducted],[Last date of FY in which the last session was conducted])))),BLANK())`

Hope this helps.

Regards, Ashish Mathur Microsoft Excel MVP www.ashishmathur.com

• Marked as answer by Saturday, July 8, 2017 3:08 AM
Saturday, July 8, 2017 3:07 AM