Capacity 
This assignment block for service arrangements is relevant only for service providers and visible only for the following capacity types:
Equally Distributed
Overall
In Customer Relationship Management Customizing, under , you have defined planned and booked capacity limits. If these limits are exceeded during an assignment check, a warning message is triggered.
Note
The Default indicator in the IMG activity Define Capacity Limit Profile specifies which entry in the capacity limit profile is used for the default implementation of Business Add-In: WFD Resource Profile.
The available information includes:
Valid from and to dates
Capacity
Unit of capacity
The system calculates capacity based on a resource's work time/availability.
Capacity entered per contract validity period:
Is equally distributed within the validity period of the data record and the availability timeframe.
Represents the overall (absolute) capacity in the validity period and availability time frames defined. This capacity (available, remaining) is based on the consumption (and is not equally distributed), therefore assignments, both concrete and capacitive, are possible as long as capacity is available.