Master Data Outsourcing Process 
Purpose
When you export employee data for payroll outsourcing, do not run Payroll from the Payroll menu. The Master Data option prepares the export file, called IDoc, 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.
Prerequisites
Make sure that all required information has been configured. You must establish:
If you also export wage types (Infotypes 14 and 15) and benefits, then you must configure:
Process Flow
Run these processes from the Human Resources ® Payroll ® Outsourcing ® Export menu. In order to produce the outsourcing IDoc, you must use each available option in the Export menu in the following order.
Result
You have completed the outsourcing payroll process.
See also:
Importing Payroll Results Process Running Master Data Outsourcing Locating New IDocs Processing New IDocs Comparing SAP Data with Third-Party Data