Troubleshooting

Common issues and solutions for JavaScript cron monitoring setup.

Common issues and solutions for JavaScript cron monitoring setup.

Why aren't recurring job errors showing up on my monitor details page?

Errors that happen outside of job execution aren't linked to cron monitors. The most common situation is an error occurring in an external service, like a database or API call, that isn't directly part of the job function. In such cases, make sure the job function execution includes any external service calls. If you have a job that starts a service outside of the job function, you should execute the service call directly within the job function.

Why am I not receiving alerts when my monitor fails?

Alert notifications are based on notification settings. If you're not receiving alerts when a monitor fails or experiences an issue, make sure you've configured an alert rule for the monitor.

To configure an alert rule:

  1. Go to Alerts and click "Create Alert Rule".
  2. Set "Issues" as the alert type under Errors.
  3. Set the conditions to: The event's tags match monitor.slug equals your-monitor-slug-here

Learn more about Issue Alert Configuration.

What is the crons data retention policy for check-ins?

Check-in data is retained for 90 days. After this period, check-in history is automatically removed.

Do you support a monitor schedule with a six-field crontab expression?

Currently, Sentry only supports five-field crontab expressions (minute, hour, day, month, weekday). Six-field expressions with seconds are not supported.

Supported: 0 */2 * * * (every 2 hours)
Not supported: 0 0 */2 * * * (every 2 hours with seconds field)

If you're still experiencing issues:

  1. Check Sentry Status: Visit status.sentry.io
  2. Review Documentation: Return to the main cron documentation
  3. Community Support: Ask on Discord or GitHub Discussions
  4. Contact Support: Use the in-app support chat for technical issues

Having trouble with your specific setup method? Return to the relevant documentation:

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