Backlog between Open Date & Closed Date

[BVick_5]

Hi all,

First off, I am brand new to Power BI (2 weeks), and I appreciate your patience and guidance. 

I have looked through some of the other posts here and I don't see my situation, so I thought I would post it and see where it goes.

Essentially, I have a data set below, that includes a Start Date and Closed Date. I want to calculate a rolling backlog every month until the Closed Date (Month).

For example:

December - 9

January - 5 (4 were closed in January)

February - 3 

March - 3

April - 2

Start Date	Closed Date
12/21/2021	4/25/2022
12/17/2021	2/15/2022
12/17/2021	1/24/2022
12/17/2021	1/19/2022
12/16/2021
12/15/2021	6/1/2022
12/13/2021	2/10/2022
12/13/2021	1/12/2022
12/10/2021	1/21/2022

Any help would be appreciated.

Thank you for your time!

[v-yiruan-msft · Accepted solution]

Hi  @BVick_5 ,

I created a sample pbix file(see attachment) for you, please check whether that is what you want. You can create a measure as below assume that there is a date dimension table in the model:

Backlog =
VAR _curdate =
    SELECTEDVALUE ( 'Date'[Date] )
RETURN
    CALCULATE (
        DISTINCTCOUNT ( 'Table'[Ticket Number] ),
        FILTER (
            'Table',
            'Table'[Start Date] <= _curdate
                && (
                    'Table'[Closed Date] > _curdate
                        || ISBLANK ( 'Table'[Closed Date] )
                )
        )
    )

In addition, you can refer the following links to get it.

Getting a running total of current open Tickets

CountOfOpenTicketsParamMeasure =
IF ( MAX ( 'Date'[Date]) <= MAX(Ticket[Opened] ),
COUNTROWS (
    FILTER (
        Ticket,
        Ticket[Opened] <= MAX('Date'[Date])  &&
            ( Ticket[Closed] > MAX('Date'[Date]) || ISBLANK( Ticket[Closed] ))
        )
)
)

Backlog- count a ticket in each month it is not solved

If the above one can't help you get the desired result, please provide more sample data in your tables (exclude sensitive data) with Text format and your expected result with backend logic and special examples. It is better if you can share a simplified pbix file. You can refer the following link to upload the file to the community. Thank you.

How to upload PBI in Community

Best Regards

[StoryofData]

Could you please tell me, how I can aggregate this up to be on a monthly level rather than daily?

[BVick_5]

Thank you very much

[BVick_5]

Ticket Number	Start Date	Prioritized Date	Closed Date
CDEX-96436	12/21/2021	1/7/2022	4/25/2022
CDEX-95876	12/17/2021	12/28/2021	2/15/2022
CDEX-95867	12/17/2021		1/24/2022
CDEX-95821	12/17/2021		1/19/2022
CDEX-95614	12/16/2021	12/17/2021
CDEX-95240	12/15/2021	12/17/2021	6/1/2022
CDEX-94685	12/13/2021	12/13/2021	2/10/2022
CDEX-94681	12/13/2021		1/12/2022
CDEX-94205	12/10/2021	12/13/2021	1/21/2022