Cron Job Scheduler no longer accepts range values

[DataEngineer]

Greetings!

This morning I went to update a schedule for a workflow configuration and was met with an error that my cron job schedule was no longer valid. This is despite the fact it's been functioning without issue since its inception 12 months ago.

Error message:

This schedule is even the exact example used in the documentation hyperlinked in the above screenshot - "unix-cron" (https://cloud.google.com/scheduler/docs/configuring/cron-job-schedules#defining_the_job_schedule)

So I'm at a loss for words.

[nikacalupas]

Hi @DataEngineer,

Welcome to the Google Cloud Community!

The error message that you encountered indicates that Cloud Scheduler might have updated its validation rules, making them stricter for cron expressions.

Here are a few suggestions that could help resolve your issue:

• Instead of using ‘/’ within the range, you might use a comma to express this as a list of explicit times in the hours field. You might try this ‘0 0,2,4,6,8,10,12 * * *’
• Regularly review the release notes of the Cloud Scheduler to stay updated about any changes to cron expression support. This will help you prevent potential issues in the future.

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