I have a sheet which has all of the training details of people who work for us. Previously I have set an action every week to email people whose certificates have expired to remind them to send me their new certificates. I want to use the new automation function to do this for me, however I can't see how to trigger it...?! Currently it is triggered by date, but the weekly option is disabled if I try to select that on a new rule. Can anyone help...?

