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Use cases → Admin and governance

Send scheduled announcements across a Workspace domain

How to reliably deliver timed announcements to all users in a domain using delegated automation and avoid common delivery pitfalls.

Who it is forWorkspace admins or IT teams responsible for domain-wide communications.
APIsGmail API, Admin SDK
Typical scopesgmail.send, admin.directory.user.readonly

The problem

Manual announcement emails are often forgotten or sent late, and relying on a single sender can hit sending quotas or miss some users due to directory drift. Scheduled, automated delivery is the only way to guarantee timely, complete distribution.

How it works

  1. Use the Admin SDK to enumerate all active users in the domain at the time of sending.
  2. Prepare the announcement email template with the desired scheduling logic.
  3. At the scheduled time, impersonate each user or use the service account to send the announcement to all recipients via the Gmail API.
  4. Log delivery outcomes for audit and troubleshooting.

What changes

Announcements reach all intended users at the correct time, with delivery records for compliance and troubleshooting.

The trap in this one. If you use the Gmail API's batch send endpoint, hitting per-user rate limits results in silent drops — some users will never receive the message, and the API does not always return clear errors in batch mode. Always check the send status for every user and implement retries with backoff for any partial failures.

Watch it explained

“Google Workspace Updates (EN) August 2023 – Google Docs, Sheets, Slides, Meet, Chat and more” — Seibert Group | Google Cloud on YouTube. Third-party video, included because it covers this ground well. We are not affiliated with the channel.

Questions people ask

Can I send from a shared mailbox instead of impersonating users?

Yes, but this requires the shared mailbox to have delegated send permissions, and it may still hit sending limits. Shared mailboxes also have their own quota distinct from user accounts.

What happens if new users are added after the announcement is scheduled?

Only users present in the directory at the time of sending will receive the announcement. For critical messages, consider a secondary catch-up send.

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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