Combined Payroll Outsourcing Process 
Purpose
The Combined Payroll Process allows you to update master data during a pay period and to export these changes. Not all IDoc segments can be exported in this mini-master version. The mini master uses fewer segments than the master data version. The mini-master data contains those IDoc segments which allow you to perform mid-pay-period processing on the Outsourcer's system (such as bonus runs).
You can process the Mini Master export multiple times during a pay period. It picks up all the changes you made since you processed the last export. The Mini-Master Export option prepares the export file to send to the third-party payroll service provider.
Once the IDoc is created, you assign the export IDoc to the appropriate service port for transport to the payroll server on which the third-party payroll service provider's software resides.
The Gross Payroll export uses pay related data only and provides the data as calculated by the Payroll driver.

The Gross Payroll exports the benefit infotype changes that occur during a pay period with the payroll driver. This way, the Outsourcers can process the benefit changes along with the corresponding deductions.
When you run the Combined Payroll option for outsourcing, you must perform two procedures to create the payroll data. The first procedure creates the gross payroll file to be used to export data to the third-party payroll service provider. The second procedure prepares the export file, called IDoc, to send to the third-party payroll service provider. It also allows you to assign the export IDoc to the appropriate service port for transport to the payroll server on which the payroll software resides.
Prerequisites
Make sure that all required information has been configured. You must establish:
Make sure that you run the gross payroll schema before you run the outsourcing options.
Process Flow
Mini-Master Data
Combined Payroll
Result
You have completed the outsourcing payroll process.
See also:
Importing Payroll Results Process Exporting Mini-Master Data Exporting Combined Payroll Locating New IDocs Processing New IDocs Comparing SAP Data with Third-Party Data