ORA-28543

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

Causa: Attempt to initialize connection to non-Oracle for heterogeneous replication failed.

Acción: Check 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.