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## CALCULATE DISTINCT For Rolling Time Period

I have a sales dataset of a bunch of customer transactions. We are breaking these transactions by Invoice Period which is essentially the last day of the month. (i.e. Invoice Date is June 7, Invoice Period is June 30). In order for a customer to be active, they have to have had a purchase in the LAST 80 DAYS of that Invoice Period. (i.e. June 30 - 80 days = April 11.). I need to calculate UNIQUE Customers in the Rolling Time period of Each Period (month).

Date Ranges:

Things I have tried:

Active Customers=
CALCULATE (
DATESBETWEEN(Sales[InvoicePeriod],MAX(Sales[InvoicePeriod])-80,MAX(Sales[InvoicePeriod]))
)

Very specific date range:

Active Stores2 =

Measure 14 = CALCULATE (
ALLEXCEPT( Sales,Sales[InvoicePeriod],Sales[Brand],Sales[TxnType] ),
AND (
Sales[InvoiceDate] >= DATE ( 2018,04,11),
Sales[InvoiceDate] <= DATE ( 2018,07,31)
)
)

None of them return the correct answer.

I believe what is happening is that the dates that may "overlap" active account periods, are not being counted in both, just the month the sales is in. Example - and April 7 sale could fall in the active account range (period - 80 days) for April, May, June and July. But it is only being counted in April.

I have a relationship on dates, (invoice date to Date), if it helps to use a calendar date.

Logic:

IF INVOICE DATE >= INVOICE PERIOD - 80 AND INVOICE DATE <= INVOICE PERIOD, DISTINCT COUNT of LICENSE.

Example:

IF 4/21/2018 >= 6/30/2018-80 (4/11/2018) AND 4/21/2018 <= 6/30/2018 THEN  COUNT OF LICENSE

Here is an example of what is happening:

233 should be for the 6/30/18 period. But it continues to split them but the account period in which the invoice actually happened.

I am trying to provide as much detail as possbile, if there is anything you need that would help, let me know!!

Thank you.

1 ACCEPTED SOLUTION

Accepted Solutions
Community Support

## Re: CALCULATE DISTINCT For Rolling Time Period

Hi dcruise,

You should use all() to remove the previous filter context, modify you measure using DAX like pattern below and check if it can meet your requirement:

```Active Customers =
CALCULATE (
FILTER (
ALL ( Sales ),
Sales[InvoicePeriod]
>= MAX ( Sales[InvoicePeriod] ) - 80
&& Sales[InvoicePeriod] <= MAX ( Sales[InvoicePeriod] )
)
)```

Regards,

Jimmy Tao

3 REPLIES 3
Community Support

## Re: CALCULATE DISTINCT For Rolling Time Period

Hi dcruise,

You should use all() to remove the previous filter context, modify you measure using DAX like pattern below and check if it can meet your requirement:

```Active Customers =
CALCULATE (
FILTER (
ALL ( Sales ),
Sales[InvoicePeriod]
>= MAX ( Sales[InvoicePeriod] ) - 80
&& Sales[InvoicePeriod] <= MAX ( Sales[InvoicePeriod] )
)
)```

Regards,

Jimmy Tao

Super User IV

## Re: CALCULATE DISTINCT For Rolling Time Period

Hi,

Regards,
Ashish Mathur
http://www.ashishmathur.com
Highlighted
Frequent Visitor

## Re: CALCULATE DISTINCT For Rolling Time Period

With a couple tweaks, I think this will do it! Thank you so much.

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