integrating sap crm with the sap HR module

Hi,

We replicated HR data(employee and position) from SAP HR to SAP CRM system using ALE/IDOC.

Here I have one question,If I change the position to the employee in CRM system,will changes happen in SAP HR system automatically? or Delta changes will haapen? If yes pl explain.

Using change pointers master data changes flowsfrom SAP HR to SAP CRM .

TIA.

PV.