topic Re: Set Expression That Concat All The Items That Customert Aint Buy in App Development https://community.qlik.com/t5/App-Development/Set-Expression-That-Concat-All-The-Items-That-Customert-Aint-Buy/m-p/2528453#M107547 <P>A selection is always a 0/1 respectively FALSE/TRUE flag-value against an existing value and these flag-value could be respected or ignored. But if there aren't appropriate data available there is nothing what could be accessed or counted in any direct way.</P> Tue, 26 Aug 2025 14:54:15 GMT marcus_sommer 2025-08-26T14:54:15Z Set Expression That Concat All The Items That Customert Aint Buy https://community.qlik.com/t5/App-Development/Set-Expression-That-Concat-All-The-Items-That-Customert-Aint-Buy/m-p/2528437#M107542 <P>Hay How Can I Get With Set Analisys All The Items That Customer Ain't Buy I Tried with E and P Un succecfull</P> Tue, 26 Aug 2025 13:16:14 GMT https://community.qlik.com/t5/App-Development/Set-Expression-That-Concat-All-The-Items-That-Customert-Aint-Buy/m-p/2528437#M107542 LaviDanl 2025-08-26T13:16:14Z Re: Set Expression That Concat All The Items That Customert Aint Buy https://community.qlik.com/t5/App-Development/Set-Expression-That-Concat-All-The-Items-That-Customert-Aint-Buy/m-p/2528442#M107543 <P>A set analysis is a selection - if there is NOTHING existing it couldn't be selected.</P><P>Very common and often the most suitable approach to get such views is to populate the missing data within the data-model.</P> Tue, 26 Aug 2025 13:57:17 GMT https://community.qlik.com/t5/App-Development/Set-Expression-That-Concat-All-The-Items-That-Customert-Aint-Buy/m-p/2528442#M107543 marcus_sommer 2025-08-26T13:57:17Z Re: Set Expression That Concat All The Items That Customert Aint Buy https://community.qlik.com/t5/App-Development/Set-Expression-That-Concat-All-The-Items-That-Customert-Aint-Buy/m-p/2528443#M107544 <P>But I can Ignore Selection</P> Tue, 26 Aug 2025 14:06:56 GMT https://community.qlik.com/t5/App-Development/Set-Expression-That-Concat-All-The-Items-That-Customert-Aint-Buy/m-p/2528443#M107544 LaviDanl 2025-08-26T14:06:56Z Re: Set Expression That Concat All The Items That Customert Aint Buy https://community.qlik.com/t5/App-Development/Set-Expression-That-Concat-All-The-Items-That-Customert-Aint-Buy/m-p/2528453#M107547 <P>A selection is always a 0/1 respectively FALSE/TRUE flag-value against an existing value and these flag-value could be respected or ignored. But if there aren't appropriate data available there is nothing what could be accessed or counted in any direct way.</P> Tue, 26 Aug 2025 14:54:15 GMT https://community.qlik.com/t5/App-Development/Set-Expression-That-Concat-All-The-Items-That-Customert-Aint-Buy/m-p/2528453#M107547 marcus_sommer 2025-08-26T14:54:15Z