If you’re working with the (not so) new self-service Tier 2 environments in Dynamics 365 for Finance and Operations you might have already noticed this: the reports in Tier 2+ and production environments aren’t using the SSRS report viewer, instead they’re being displayed in a beautiful PDF preview form.
But what happens on your development box?
If you want to know more about self-service environments you can read these posts I wrote a while back: