Employment expenses and commission income

Why does DT Max restrict employment expenses to commission income earned from employment?

DT Max will restrict the expenses based on the expense option chosen with the keyword Expenses.e . If no commission income is earned from employment, the restriction does not apply.

If the expenses are to be restricted (when commission income is earned through employment), DT Max will restrict the expenses entered with Oth-Exp-Res . The expenses entered with Oth-Expenses will not be restricted.