Entities in period B but NOT in period A.

[ÁlvaroAmo]

Hello all,

I'm trying to build a dashboard (in PowerBI Desktop) that shows the list of entities in Period B (selected by filter) but NOT in period A (also selected by filter).

I want to show the list of entities but I don't know how to refer that filters selected into the DAX formula.

This is the idea: 

All help would be appreciate, thanks you so much.

Álvaro.

[ÁlvaroAmo]

Thank you so much for your help, it works!! 😁

[Greg_Deckler]

@ÁlvaroAmo Without sample data very difficult to be specific but here are some things that might help.

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Sorry, having trouble following, can you post sample data as text and expected output?
Not really enough information to go on, please first check if your issue is a common issue listed here: https://community.powerbi.com/t5/Community-Blog/Before-You-Post-Read-This/ba-p/1116882

Also, please see this post regarding How to Get Your Question Answered Quickly: https://community.powerbi.com/t5/Community-Blog/How-to-Get-Your-Question-Answered-Quickly/ba-p/38490

The most important parts are:
1. Sample data as text, use the table tool in the editing bar
2. Expected output from sample data
3. Explanation in words of how to get from 1. to 2.

[ÁlvaroAmo]

@Greg_Deckler thanks for you quick response 😁

1. Sample data as text, use the table tool in the editing bar:

Name of the table: Entity_Data

Name	Period	Activity
Spain	2020	Purchase
Portugal	2020	Manufacturing
Germany	2021	Goods
France	2020	Manufacturing
France	2021	Manufacturing
Austria	2021	Goods

I have a table like this, more or less.

2. Expected output from sample data:

In that case, the output should be: Germany and Austria in the first case and in the second one Spain, Portugal, Austria and Germany

I want to show what entities are in Period B but not in Period A, but this periods are selected by filters into the report page.

Anything more you need, just ask, this is my second doubt into the forum 😅

Thanks a lot!

Álvaro.

[Greg_Deckler · Accepted solution]

@ÁlvaroAmo See the attached PBIX below signature.