Dynamic SAMEPERIODLASTYEAR with slider filter

[Loan]

Hello,

I'm strugeling wirth a issue in my powerbi inventory reporting.

My inventory number ("Flux" here) is a sum from the begining of my table.

With the Date ("DateDone" here) in a filter/slider, i can see the data of my inventory for a product at a specific period, but i would like to see also the inventory of this product at the same date for the last year.

With the dax formula "SAMEPERIODLASTYEAR"

LY FLUX = CALCULATE(SUM('odoo StockMove'[Flux]),SAMEPERIODLASTYEAR('odoo StockMove'[DateDone].[Date]))

the issue is that the date and the Flux sum returned is always the last date of the previous year

So for the 01/09/2021, the last year Flux ("LY Flux") will be the sum of the 31/12/2020, not the 01/09/2020

Can you help me with that please ?
Best regards

[v-kelly-msft · Accepted solution]

Hi @Loan ,

SAMEPERIODLASTYEAR is a time intelligence function,you'd better first create a calendar table then create a relationship between the date table and the fact table.

Finally using below expression instead.

LY FLUX = CALCULATE(SUM('odoo StockMove'[Flux]),SAMEPERIODLASTYEAR('Calendar'[Date]))

Check below examples:

https://databear.com/power-bi-dax-sameperiodlastyear-paralellperiod-and-dateadd/

Best Regards,
Kelly

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[Greg_Deckler]

@Loan You may find this helpful - https://community.powerbi.com/t5/Community-Blog/To-bleep-With-Time-Intelligence/ba-p/1260000

Also, see if my Time Intelligence the Hard Way provides a different way of accomplishing what you are going for.

https://community.powerbi.com/t5/Quick-Measures-Gallery/Time-Intelligence-quot-The-Hard-Way-quot-TIT...