Use the create connection or alter connection commands to set the dsi_quoted_identifier parameter to “on” to enable quoted identifier support.
See Replication Server Reference Manual > Replication Server Commands for the create connection and alter connection full command syntax.
Data servers receive quoted identifiers differently. Adaptive Server and Microsoft SQL Server need a special connection set-up for quoted identifiers because they do not expect quoted identifiers. Oracle and UDB do not need a special connection to accept quoted identifiers.