https://help.tallysolutions.com/docs/te9rel60/sync/Synchronisation_Via_Tally.NET.htm

Synchronisation Via Tally.NET Server

When online synchronisation is performed using Tally.NET Server, the Tally.NET Server acts as a bridge or a connection between the server and the client company.

To know more, click the links below:

     Configuring Client/Server

     Configuring TSS Features

     Connecting Server Company to Tally.NET Server

     Creating Sync Rule on Client

     Activating Sync Rule on Server

     Synchronising Data