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Anonymous's avatar
Anonymous
Not applicable
9 years ago
Solved

Calculate Days between OrderDate per Customer where Order date is in the same Column???

I'll start with Please Help!! After Hours of trialing theories i need some help,   I have a data set which is purely sales data. containing Customer ID, CustomerName, OrderDate, Items Ordered etc....
Need Help
  • Anonymous's avatar
    Anonymous
    9 years ago

    Sorry Matt,

     

    Got it working not sure if it was me having the .Date on the date column and i selected CustomerID for the Values bit, but got rid of the .Date and ID so its like the columns below and done manual calculations to verify the data its outputing and its working now

     

    So this is what i ended up with;

     

    First Order = CALCULATE(FIRSTDATE(TableName[Date]),VALUES(Tablename[Date]))

    Last Order = CALCULATE(LASTDATE(TableName[Date]),VALUES(Tablename[Date]))

    Number of Orders = DISTINCTCOUNT(TableName[OrderID])

    First to Last Date period = ((TableName[Last Order] - TableName[First Order])*1)

    Today = Today()

    Days Since Last Order = TableName[Today].[Date] - TableName[Order Date].[Date] * 1

     

    Avg Order Period = divide(TableName[First to Last Date period],TableName[Number of Orders])

    &

    Difference = CALCULATE(MIN([Days Since Last Order]) - [Avg Order Period])

     

    Then when Difference gets to 0 its time to call,

     

    Seeing it like the above makes it so clear, Thanks Matt, Great Work !!!

     

    Thanks,

     

    J

MattAllington's avatar
MattAllington
Icon for Community Champion rankCommunity Champion
9 years ago

I realise this seems easy, but it is not so easy - hope that makes you feel any better :-).    Power Pivot is not really built to handle relative comparison between rows in a table.  You can do it, but it is not super easy.  But as I think about your problem in a different way, I think there may be an easier way to solve the problem that might meet your needs.  

 

Break the problem into pieces

 

Using Adventure Works as an example, you could write measures like this. If you put customer name on a visual (say table) with these measures, I think it will give you what you need.

 

Last Order=CALCULATE(LASTDATE(Sales[OrderDate]),VALUES(Customers[CustomerKey]))

First Order=CALCULATE(FIRSTDATE(Sales[OrderDate]),VALUES(Customers[CustomerKey]))

Total Orders=DISTINCTCOUNT(Sales[SalesOrderNumber])

First to Last Date period=[Last Order] - [First Order]

Edit (sorry, previous formula was wrong):  Avg Order Period=divide([First to Last Date period],[Total Orders] -1 )

Anonymous's avatar
Anonymous
Not applicable
9 years ago

Thanks, ill give this a try tonight / tomorrow evening and let you know how i get on. 

 

Hopefully fix it! Been trying different ways for a few weeks now without sucsess 

 

Will keep you posted ASAP, 

 

Thanks, 

 

Josh

  • Anonymous's avatar
    Anonymous
    Not applicable
    9 years ago

    Datatouille

     

    I also saw your responce as a mention but ill also try that and let everyone know the calculation and if it works or not, 

     

    Thanks for the help guys, 

     

    Cheers, 

     

    Josh