If you want to maintain an available capacity , you can transfer the following data from a reference capacity :
the active available capacity version
If no active version has been specified in the reference capacity, you can determine one.
When you create an available capacity for a work center, you can transfer the available capacity of another capacity category.
By either referencing or copying capacities, you determine how transferred data can be changed:
Copying capacities
You can change the transferred data. Changes to the reference capacity have no effect on the capacity.
Referencing capacities
You can only change the transferred data by changing the reference capacity.
Note
Multi-level references: If you copy or reference capacity Y in capacity X and capacity Y copies from or references capacity Z, then the data for X is copied or referenced directly from Z.