Budget Structure Definition via Group Assignments 
Purpose
Defining a budget structure using commitment item groups supports a clear and quick way of allocating budget for:
Prerequisites
For more information on defining a budget structure using individual objects, read
Defining Budget Structures Using Individual Objects.Process Flow
Execute step Change budget structure and have set the Group assignments indicator on the initial screen.
You need only carry out the following steps if budget values already exist.
Result
The budget structure only contains the elements, which are needed in your organization for central or local budgeting from all possible combinations of funds centers and commitment items. Only combinations of funds centers and commitment items that can be budgeted appear in the budget hierarchy.
See also:
Defining Budget Structure Using Group Assignments Generate Budget Structure from Group Assignments