https://help.tallysolutions.com/docs/te9rel60/SMS/Connect_Company_to_TallyNET.htm

Connecting Company to Tally.NET Server

You can connect the company to Tally.NET Server from F4: Connect.

To connect the company to Tally.NET Server

1.    Go to Gateway of Tally.

2.    Click F4:Connect.

On successfully connecting the company to Tally.NET Server, a message appears in the calculator pane as shown below:

You will also receive an E-Mail containing the following details:

     Company SMS Names: The company's short name provided in Company name for SMS field under SMS Access Details in F11: TSS Features.

     SMS Suffix: A unique number allotted to each company. It is added at the end of the service number while sending the SMS request.

     Company Connect Name: The company’s name provided in the Connect name field under Connection Details in F11: TSS Features.