Securely link to PDF files from report using RLS

Hello,

 

I have a report with row-level security (RLS). Users log in and can only view their own data (accounts). Each user (via email) is associated with specific account numbers allowed by RLS. Below is a simplified model diagram.

 

Within the report, I display transactions in a table. I’d like to include URLs linked to PDF files describing the status of each unit. Currently, these PDF files reside in a SharePoint folder. It's thousands of PDF files. My challenge is to create secure links to these PDFs, preventing users from altering the URL to access PDFs for other accounts. While obfuscating the UnitID in the URL is an option, it doesn’t provide robust security. Notably, Power BI RLS doesn’t apply to SharePoint folders.

 

Do you have any suggestions for solving this? Should I explore alternative storage methods (such as a database), or is there a clever approach using Power Apps or something else?... 😊