Automic Workload Automation

U0021163 - The Calendar has not yet been (re)calculated ! Calendar not usable because its re-calculation has not yet been activated.
U0062033 Warning: calendar 'DUMMY_VARIABLE', keyword 'DUMMY_VARIABLE', client 'DUMMY_VARIABLE' - validity period ('2016-1-1' - '2018-12-31')

The aforementioned errors are alert messages that the scope for a calendar may lie outside the calculation period.This message occurs when the current recalculation for the calendar is for a time-frame that is shorter than the one that was recalculated before or if the calendar keywords have expired past their validity period. For example, if initially the calendar has a time-frame of 4 years then the day after it is recalculated for 2 years.  The prior entries between the second and fourth years will be deleted. In order to rectify this error please right click on the keywords that are mentioned in the error messages and modify the validity period.

To add on to this - within the U0062033 message it will show the validity period. Making sure that you are within the validity period is the part that can have impact on anything that utilizes the calendar.