Data Source Created. How to use with Paginated Report

pawlowski6132 - I see the issue now. Just like there are 2 versions of Power BI Desktop, there are also 2 versions of Report Builder and you are using the version built for powerbi.com not the on-prem version. v-deddai1-msft is still confusing the issue between Power BI Desktop and Report Builder.

If you open the home page of your Report Server portal, in the top right corner is a downloads icon which has a menu that will take you to the correct version of both Power BI Desktop and Report Builder to use with your version of Power BI Report Server.

Or if you are on the Jan 2021 release you can get the latest version of the on-prem Report Builder from the following link

https://www.microsoft.com/en-us/download/details.aspx?id=53613

When you use this version you will see the option for using shared datasets as in the screenshots I posted earlier.