Releasing IDocs 
In order to prepare the IDoc to be processed or released to FI / CO, you must first release it.
Make sure that you have converted the electronic payroll results file or files from the third-party payroll service provider to an IDoc file or files.
1. Select Human Resources ® Payroll ® Outsourcing ® Import ® Release IDocs.
The Inbound Processing of IDocs Ready for Transfer screen appears.
2. In the IDoc number field, type the number of the IDoc or IDocs.
3. Choose Execute.
You have released the IDoc for processing. If you are processing the Payroll data in Human Resources, continue with Importing Payroll Results. If you do not need to do this, you have completed the payroll results import.