Replicates a single object between any two domain controllers that have common directory partitions. The two domain controllers ...

Replicates a single object between any two domain controllers that 
     have common directory partitions.

     The two domain controllers do not have a replication agreement 
     (inbound connection object).

     Replication agreements can be shown using the Repadmin /showrepl command.

     [SYNTAX]
     
     /replsingleobj   
     

     [EXAMPLES]

     The following command will trigger replication of the object specified from
     source-dc01 to dest-dc01
     
     repadmin /replsingleobj dest-dc01 source-dc01 cn=VPSales,ou=execs,dc=contoso,dc=com