Hi, you need to configure like this way
1.Execute TransactionGRAC_REP_OBJ_SYNC
2.Select a variant (optional) and click Execute.
3.Select Sync Job to execute: Profile/Role/User.
4.Enter the system connector ID to execute the User Master Data synchronization.
5.Enter the connector language.
set the job as schedule or check using run immediate mode.
Thanks,
Arif