Backlog of questions Report Server 2025: subscriptions, access groups, data model and accessdatabase

Hi There,

It seems that the PBIR is still in preview feature.

PBIRS supports email subscriptions only for paginated reports (RDL format). Interactive PBIX subscriptions are not available on PBIRS. However, in the Power BI Service, a preview feature called dynamic subscriptions is available in Premium or Fabric capacities.  

Composite models are supported in Power BI Service and Desktop, but not in PBIRS. There has been no confirmation of when this feature will be supported in PBIRS.  

PBIRS requires the Access Database Engine for legacy .xls files. There’s no indication that native support for .xls files will be added directly to PBIRS.  

Access management is handled via Windows Active Directory groups, but PBIRS does not offer internal role or user group management. This feature is not on the published roadmap.  

please find the reference article below:

https://learn.microsoft.com/en-us/power-bi/developer/projects/projects-report?tabs=desktop#pbir-considerations-and-limitations 

Thanks!!