Hi Reguel
Thanks for explanaition.
I recognized that sendDailyMailBean is triggered all the time.
Unfortunately, there was a Date defined for Delay and Date.getDurationFromNow() was calculated precisely with time.
Changing the field to Date and Time, the user can define Delay with exact time Time for himself now, helps.
![alt text][1]
[1]: http://answers.axonivy.com/upfiles/createTask_ZyPGz7C.jpg