Philipp Matuschka 7/3/2019 3:08:13 AM
I've never tried this, but what if, instead of a periodic trigger. you used a time dependent trigger, which when it was finised updated some date field in a record, which therefore caused the same trigger to run again a few minutes later. You wouldn't have control over how many minutes - depending on how loaded the system is time dependent triggers seem to take from 1 to 20 minutes to run. But you also wouldn't have to write and manage 240 periodic triggers.
Worth a try?