There are some possible limitations of a heterogeneous replication system depending on the particular databases involved, and based on Sybase replication technology:
Stored procedure replication
Owner-qualified object names
Large object replication
Setup for replicate databases
Replication Server support for encrypted columns
Subscription materialization
Replication Server rs_dump command
Replication Server rs_marker command
Replication Server rs_dumptran command
Replication Server rs_subcmp utility
Dynamic SQL
Bulk copy
Replication Server rs_ticket stored procedure