# Step 4: Set output and scheduling
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**Output configuration**  
Options include how the crawler should handle detected schema changes, deleted objects in the data store, and more. For more information, see [Customizing crawler behavior](crawler-configuration.md)

**Crawler schedule**  
You can run a crawler on demand or define a time-based schedule for your crawlers and jobs in AWS Glue. The definition of these schedules uses the Unix-like cron syntax. For more information, see [Scheduling a crawler](schedule-crawler.md).