Heroku Scheduler runs your jobs, but won't tell you when they fail. Add one line to get instant alerts.
Heroku Scheduler only offers "Every 10 minutes", "Every hour", or "Daily". Jobs can slip between the cracks.
Heroku explicitly states Scheduler is "best effort" — jobs aren't guaranteed to run. But you won't know if they didn't.
If your one-off dyno crashes mid-job, Heroku won't restart it or alert you. The job just... stops.
Heroku Scheduler has no notification feature. Check the dashboard manually or miss failures entirely.
Add a curl to the end of your Heroku Scheduler command:
# Before
rake db:backup
# After
rake db:backup && curl -fsS https://api.cronsignal.io/ping/abc123Your rake task (or script) runs normally
&& ensures the ping only runs if the task succeeds
CronSignal expects a ping on schedule. No ping? You get an alert.
If you're running a script, add the ping at the end:
#!/bin/bash
set -e # Exit on error
# Your job logic
python manage.py generate_reports
python manage.py send_emails
# Ping on success
curl -fsS https://api.cronsignal.io/ping/abc12310 minutes, hourly, or daily — we support the same intervals as Heroku Scheduler.
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