https://help.tallysolutions.com/docs/te9rel60/Advanced_Features/Advanced_Accounting_Features/Altering_a_Scenario.htm

Altering a Scenario

When you don't want a voucher type to affect the scenario anymore, you can modify the existing scenario and remove the voucher type from the Include list.

To alter a scenario

1.    Go to Gateway of Tally > Accounts Info. > Scenario > Alter.

2.    Select the scenario to alter from the List of Scenarios.

3.    Modify the details as required.

4.    Press Enter to save.