https://help.tallysolutions.com/docs/te9rel60/Voucher_Entry/Accounting_Vouchers/Creating_a_Sales_Entry.htm

Recording a Sales Entry

When a company sells goods on credit or cash, Sales voucher is used to record all the Sales transactions of the company.

To pass a Sales Voucher,

     Go to Gateway of Tally > Accounting Vouchers

     Click on F8:Sales on the Button Bar or press F8.

For example, if you are selling goods to Debtor A for a value of Rs. 10000/-

     a) Debit Customer’s Account.

     b) Credit Sales Account.