Why do I see 0 accounts in my Access Review?

Problem

You added an app to your Access Review:

and you don't see any accounts 😱:

Why might this happen?

Let's take a step back & look at the source of the app selected in the first screenshot:

When an app is email-sourced, it will not yield any accounts, because those accounts are Discovered. 

Basically, we have discovered them via OAuth tokens and/or email subject headers, and cannot validate that they have an active account, which is why they get filtered out in an Access Review. 

Solution

If it doesn't sit behind your IdP and if we don't currently have an integration, then add a custom app. See📄 Adding a custom app