Some third-party apps have no business touching your company’s data. App Blocking lets you shut one down across your entire Google Workspace — revoking everyone who already connected it, and automatically revoking anyone who tries to connect it later.
Think of it as the enforcement half of App Discovery. Discovery shows you which third-party apps your team has connected to Google; App Blocking is how you cut off the ones you don’t want — org-wide, with a reason on record.

How It Works
When you block an app, two things happen:
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Everyone who already authorized it gets revoked. ShiftControl scans your whole directory, finds every user who granted the app access to Google data, and pulls those grants. On a large org this runs in the background and takes a few minutes — we email you a summary when it’s done.
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New authorizations get revoked automatically. The block stays live. If someone connects the app later, ShiftControl catches it — usually within a couple of minutes — revokes the new grant, and emails that user to explain why.
Blocking is keyed to an app’s Google OAuth client ID. Block by name and we cover every client ID we’ve seen for that app; drop into the advanced view to block a single one — handy for shutting down one compromised client ID while leaving the rest running.
One thing worth understanding: blocking revokes an app’s access to your data — Drive, Gmail, Sheets, Calendar, and the rest. It doesn’t end a “Sign in with Google” login session already running inside another service. Where it’s genuinely powerful is exactly where it matters most: apps that hold real access to your files and mail.
Getting Started
You can block an app from three places, and every one of them creates the same org-wide block:
- From the new Blocked apps page under Apps in the sidebar — best when you already know the app by name.
- From the App Permissions dashboard, right next to the OAuth activity you’re reviewing.
- From any user’s App permissions tab, when you spot something while looking at one person.

Click Block an app, pick the app (or paste a client ID manually), add an optional reason so future-you knows why, and confirm. Revocation starts immediately.

Pause, resume, edit the reason, or unblock any time from the row’s menu — it’s all there from day one. More enforcement is on the way.

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