Thanks for sharing. I’m wary of installing 3rd party Apps though. I haven’t done much research on them.
The PTO accrual happens on the 1st and 16th of every month. What I did was create a field that is 1 on those days (0 on others) and a view that includes records when that value is 1.
I setup a trigger for the Automation to be when a record enters that view. Working well so far during my development!