Processing Recurring Payments and Deductions 
Use
Using recurring payments and deductions you determine the wage and salary components which under normal circumstances you pay or deduct from an employee. You can pay bonuses for travel costs or holiday pay, for example.
You can enter an additional payment that differs from the cost assignment in the Organizational Assignment infotype (0001) for recurring payments and deductions. If this is the case, the recurring payment/deduction will be taken from the cost center that differs from the master cost center.
Defining Recurring Payments and Deductions

The entries in the Amount and Number/Unit fields depend on the selected wage type. For directly valuated wage types, enter the amount and the number or unit. This is not necessary for indirectly valuated wage types.
You can either make entries in the First Payment Period and Interval in Periods field, or in the First Payment Date and Interval/Unit field. If you have entered the first payment period and the interval in periods, you cannot enter data for the payment date and interval/unit, and vice versa.
Defining Recurring Payments and Deductions for Varying Account Assignments.
The Cost Assignment Defaults dialog box appears.
You have created a cost assignment for a recurring payment/deduction that differs from the cost assignment in the Organizational Assignment infotype (0001).