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Use cases → Documents and Drive

Monitor shared drive storage quotas with a service account

Track storage consumption on each shared drive before usage hits the quota and blocks uploads or syncs.

Who it is forAdmins responsible for Drive storage health across multiple tenants.
APIsDrive API
Typical scopesdrive.readonly

The problem

Shared drives have quota limits, but there’s no built-in alert before hitting them. Users only see failures after the quota is exceeded, often during critical uploads.

How it works

  1. List all shared drives using the Drive API with delegated access.
  2. For each drive, request the 'capabilities' and 'quotaBytesUsed' fields.
  3. Aggregate usage data and compare against the drive’s quota.
  4. Trigger alerts or reports when usage crosses a defined threshold.

What changes

Admins get advance warning when drives are running low on space, allowing proactive cleanup or quota increases.

The trap in this one. Drive API’s 'quotaBytesUsed' field can lag several hours behind actual usage, especially after large deletions or uploads. Relying on this value for near-real-time alerts means you’ll sometimes miss a genuine out-of-space event until users are already blocked.

Questions people ask

Can I get per-user storage breakdowns within a shared drive?

No. The Drive API reports total storage used per shared drive, but does not attribute usage to individual users.

How often should I poll for quota usage?

Hourly works for most environments, but even then be aware of the lag in quota reporting—critical uploads may still fail unexpectedly.

Want this built?

This is a pattern we run in production. We will set up the delegation and build this on top of it — $500 per hour, most of it working the same day.

Talk to us Or read the setup guide

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