Interval of Available Capacity 
Definition
Available capacity in an available capacity version that replaces the standard available capacity for a certain period.
Structure
Capacities in an interval of available capacity are only available on the working days in the validity period. You can override the factory calendar with the Workdays indicator and specify that
In an interval of available capacity the same capacity is available on every workday (interval with a cycle duration of 1 day) or every workday in the week has its own available capacity (interval with a cycle duration of 7 days).

For instance, if you have a cycle duration of 7 days, the available capacity for Monday could be 8 hours. This means that on every Monday in the validity a capacity of 8 hours is available. In contrast, the available capacity on Tuesday could be 6 hours.
You can distribute the available capacity in interval over several shifts.