Custom cron schedules not working

Hi there,

I am trying to configure some custom cron schedules for our drone pipeline to automatically rotate some keys. I need to set this cron schedule to run every 90 days but whatever format I try the UI seems to interpret it incorrectly. Does anyone know if custom cron schedules outside of a month work, because I seem to be unable to get it to do so whatever format I try?

If anyone has a working drone cron expression for a 90 day schedule, if you could please share, I would greatly appreciate it.

What cron expressions are you trying?