Glossary: Scheduler

Scheduler

The Scheduler is TYPO3’s built-in job planner for one-time and recurring tasks. It lets you configure tasks in the backend while a single server cron/systemd timer executes all due jobs via the TYPO3 CLI.

Use Cases for the Scheduler

The Scheduler is typically used to automate and coordinate background work, such as:

• Periodic cache cleanup and database housekeeping
• Regular imports/exports (e.g. product feeds, external APIs)
• Sending newsletters or generating RSS/CSV reports
• Updating search indexes on a schedule
• Running Symfony console commands at defined intervals
• File and media maintenance jobs

How the Scheduler Works

• Configure tasks in the backend module “Scheduler” (choose a task type, set interval/start time, add options).
• Set up one server-side trigger (cron or systemd) that calls typo3 scheduler:run; TYPO3 then executes all due tasks.
• Monitor runs via logs and optional email notifications; execute tasks manually if needed.

Advantages

• One central place for all background jobs
• No separate cron per task – a single trigger runs everything through TYPO3
• Flexible schedules (once, minutes, hourly, daily, weekly, custom)
• Extensible with custom task classes or scheduled Symfony commands
• Improved maintainability and transparency compared to ad-hoc scripts

Typical Use Case

A daily 03:00 AM job imports data from an external API, cleans up outdated records, warms caches, and exports a CSV report — each step as its own Scheduler task with clear logs and retries.