expression

The schedule expression that defines when the mute rule activates. The expression must be between 1 and 256 characters in length.

You can use one of two expression formats:

• Cron expressions - For recurring mute windows. Format: cron(Minutes Hours Day-of-month Month Day-of-week)Examples:

• cron(0 2 * * *) - Activates daily at 2:00 AM

• cron(0 2 * * SUN) - Activates every Sunday at 2:00 AM for weekly system maintenance

• cron(0 1 1 * *) - Activates on the first day of each month at 1:00 AM for monthly database maintenance

• cron(0 18 * * FRI) - Activates every Friday at 6:00 PM

• cron(0 23 * * *) - Activates every day at 11:00 PM during nightly backup operations The characters *, -, and , are supported in all fields. English names can be used for the month (JAN-DEC) and day of week (SUN-SAT) fields.

• At expressions - For one-time mute windows. Format: at(yyyy-MM-ddThh:mm)Examples:

• at(2024-05-10T14:00) - Activates once on May 10, 2024 at 2:00 PM during an active incident response session

• at(2024-12-23T00:00) - Activates once on December 23, 2024 at midnight during annual company shutdown