https://help.tallysolutions.com/docs/te9rel64/SMS/Enable_SMS.htm

Enabling SMS Feature in Tally.ERP 9

You can enable the SMS Feature in Tally.ERP 9 from TSS Features.

To enable the SMS feature

1. Go to Gateway of Tally > F11: Features > TSS Features .

Note: Set the option Use security control to Yes while creating or altering a company to enable TSS Features .

2. Enable the option Enable SMS a ccess .

3. Enter a short name for the company in the field Company name for SMS . T he company’s short name cannot exceed ten characters.

4. Press Enter to save.