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Use cases → Documents and Drive

Track document approvals across teams with delegation

Automate tracking of document approval status by having a delegated service account write and monitor comments or metadata across multiple teams’ Drives.

Who it is forTeams coordinating document reviews and approvals across departmental or subsidiary boundaries.
APIsDrive API
Typical scopesdrive

The problem

Manual tracking of who has approved which document results in missed steps and confusion, especially when reviewers are in different organisational units or domains. Shared spreadsheets go out of sync and email chains are unsearchable.

How it works

  1. Have a delegated service account insert a standardised approval comment or custom property on each document as reviewers complete their part.
  2. Poll for changes or use push notifications to update a central tracker when new approvals are logged.
  3. Enforce that only comments or metadata from the service account count as approvals to avoid ambiguity.
  4. Surface approval status in a Sheet or dashboard for stakeholders.

What changes

Approval status is visible in one place, with an auditable trail tied to document actions rather than emails.

The trap in this one. Drive API comment insertion and metadata updates are eventually consistent: rapid polling can return stale results, so an approval may not appear in the tracker for several minutes. This is silent—there is no error or warning from the API, but downstream workflows may trigger prematurely or miss a required approval if they rely on immediate consistency.

Questions people ask

Can we speed up detection of new approvals?

Push notifications (Drive API 'watch') help but are not fully real-time; you must handle duplicate and out-of-order notifications.

Can reviewers add approvals directly?

For reliable tracking, require approvals only via the service account. Otherwise, you'll need to reconcile user-added comments, which are not always uniquely identifiable.

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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