Hello. I made an accrual plan that should provide my employees with 30 days of paid time off on the 1st of January and should start immediately on allocation

However, my employees receive ZERO. 

From my understanding, a scheduled activity should allocate it and you can run it manually if you need to.

I have tried this method and it worked previously but it's not working at the moment for some reason. Does anyone have an idea?

Another side question: How do you configure this -  If an employee takes an unpaid leave, a day’s wage is deducted per day. consider the daily wage to be the monthly wage divided by 30