Cisco Active sessions not matching radius accounting syslogs numbers

[ajc]

We are currently testing Palo Alto FW user-id feature which is collecting data from our ISE deployment via Radius Accounting syslogs. Interestingly, the PA FW is reporting 90-95K user-id information BUT our active sessions in the dashboard and API call is reporting over 130K. Wondering what is the difference between both, I could not find much information from my research. thanks

[Torbjørn]

I don't think it's possible to get to a conclusive answer without inspecting the data more thoroughly. My first hunch is that this might mean that some users might have multiple sessions?