Problem with Security (SAP)

Hi Everyone,

We are using Business Objects XiR3 and SAP. We have imported the roles from SAP in BOE. The role which was imported, belongs to various roles in R3(SAP). If some of the role dropped in R3(SAP), how it would affect in BOE. Will that user be deleted in BOE?

How BOE automatic updates synchronization?

Any help would be highly appreciated.