Discount count based on 15 minute interval

[Anonymous]

Hi all,

Below is a sample of the data that was given to me.  The goal (which seems pretty simple) is to count the number of times a customer opened an email sent to them using the Opened On date/time stamp.  The crux is there has to be a 15-min interval between the opened times.  

So in the example below, Customer A shows they opened the email 5x on 11/14 but it should only be counted 3x.  The first and second time it was opened (at 9:37am and 9:38am) only counts once and the lat two times (at 11:56 and 11:56 AM) also only counts once.    Customers B and C would have longer intervals between the times they opened the email so each one would be counted.

Do I need to create a date/time table first to get the intervals? 

Thank you for any help in advance.

[v-chuncz-msft · Accepted solution]

@Anonymous,

You may refer to the following post and use DATEDIFF.

https://community.powerbi.com/t5/Desktop/Finding-the-previos-occurrence-within-same-table-based-on-one/m-p/342607#M153516

[Anonymous]

Hi

Thank you for that.  I was actually able to create a similar measure, just took a little while to find the right combination. I'm halfway thru the solution but I think I might finally have it.  I'll post again with the solution once I have it all figured out.

Thank you.

[Anonymous]

Also the title of my topic wasn't supposed to say DISCOUNT.  It was supposed to say DISTINCT COUNT but apparently I combined the two words into one!