Oracle Solution for Error ora-28543

ORA-28543: Error initializing apply connection to non-Oracle system

What triggered the Error:

tempt to initialize connection to non-Oracle for heterogeneous replication failed.

What should we do to fix it:

eck if the listener used to connect to the gateway is up and is correctly configured. Make sure that the database link used has been configured correctly and, if a tnsnames alias has been used in the database link definition, make sure that the configuration of the entry in tnsnames.ora has been done correctly.