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Use cases → Documents and Drive

Notify users before shared Drive documents expire

Detect upcoming expiry of shared Drive documents and notify owners or collaborators so they can take action before access is lost.

Who it is forIT, security, or records management teams responsible for document sharing compliance.
APIsDrive API, Gmail API
Typical scopesdrive.readonly, gmail.send

The problem

Shared Drive links often have expiration dates set, but users are rarely aware of impending loss of access. Documents can become unavailable at critical moments, causing disruption or data loss.

How it works

  1. Enumerate all shared files across relevant Drives using the Drive API.
  2. Filter for files with an upcoming 'expirationTime' on permissions.
  3. Map each expiring permission to the relevant document owner or collaborator.
  4. Send notification emails to affected users, including file details and expiry date.
  5. Log each notification event for audit.

What changes

Users receive timely warnings before shared document access is lost, reducing unplanned interruptions and last-minute recovery requests.

The trap in this one. Drive API's permissions.list only returns up to 100 permissions per file, silently omitting excess. Large files with many external shares will not have all expiring permissions detected unless you implement explicit pagination. Missing this leads to some users not being warned, with no error or warning from the API.

Watch it explained

“Google Sheets: Sharing Google Docs||Transfer Ownership||Set Expiration||Create Copy Link” — Sheetomatic on YouTube. Third-party video, included because it covers this ground well. We are not affiliated with the channel.

Questions people ask

Can this catch all types of shared links?

It works for explicit Drive permissions with an 'expirationTime' field. Public or domain-wide links without expiry are not included.

How far in advance should notifications be sent?

A common pattern is 7 days and 1 day before expiry, but this can be adjusted based on business requirements.

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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