We are outsourcing our HR and payroll modules and need to feed the payroll data back into our Oracle

We are on Oracle 12.1.3 and are planning on outsourcing our HR and payroll modules.  We need to feed this information back into payroll and not sure what steps need to be taken.  I have looked over the backfeed documentation but this relates to time entry feeding into payroll, we need to feed the outsourced payroll data into the Oracle GL module.  I'm not sure which interface tables will need to be populated or the steps that should be taken to bring this data back into the Oracle GL.  Any help or documentation would be greatly appreciated.

Thank you for your help with this matter,