Merging calendars

[CeRIM]

I have defined project calendar, the task has specific task calendar and resource assigned to the task has own calendar. What is the rule? What if I have two resources with different calendars assign to the same task? How risk project merge them?

[Intaver Support]

Calendars have a precedence logic whereas the Resource calendar > Tasks Calendar > Project Calendar. Therefore in your situation, the resource calendar will override the task calendar unless the “Ignore Resource calendar” option is selected for the activity.
If you have two or more resources each with their own calendar assigned to a task, then the working time is a merger of the two resource calendars. Merging works by overlapping calendar exceptions. For example, if calendar A has Monday day off and calendar B has Wednesday day off, the combined calendar will both day non working. The same is true for hourly exceptions: