Replicate server changes to clients

For my project, I made changes to the XData demos (I use FB3 and the server is a console application).

Every time the server is started, I check if some tables have some standard records (city table and others), and if necessary I insert or modify a record.

The inserts / edits are made through Aurelius.

The problem is that client applications are not pulling these records.

I tried to add:

FEchoSubscriber: = TEchoEventSubscriber.Create;

The standard ECHO tables are populated, however clients do not receive this data.

Where did I go wrong?