Assigning FTE Budgets (Top-Down) 
Please make sure that the budget of the budget structure element in question is a full-time-equivalent budget.

The procedure
Defining Employee Groups/Subgroups shows you how to display default values at this point.The system displays the names of the pay scale fields, and the corresponding pay scale details.
The system displays the available budget (i.e. how many FTEs can still be assigned to this budget from the budget of the higher-level budget structure element).
If you chose Transfer, the system now displays the full-time equivalents that were proposed.

Make sure that no more budget is available for other budget structure elements afterwards.