Changing an SMP Record for an Employee Whose MPP Has Commenced 
Procedure
The Maintain HR Master Data screen appears.
Use the matchcode function to find a number you do not know.
The Copy SMP Record GB screen appears.
The system then enters the expected end date for the MPP automatically.

If you do not enter the actual start date of the MPP, this information is generated later, once you enter the birth date and maintain the record.
Result
This procedure updates the employee’s SMP record with her actual MPP details. The record is valid until the expected end date of her maternity pay period.