The price levels that you define automate the invoice pricing and help to avoid errors. You can configure the entry so as to prevent the usage of a different price list than the one that is set.
To configure for preventing changes made to the price level settings in a voucher
Go to Gateway of Tally > F12: Configure > Invoice/Orders Entry
Set Allow modification of ALL fields during entry to No to prevent changes made to prices. If you set it to Yes, you can override the prices already defined.
Consider the following example
| 1. | Go to Gateway of Tally > Accounting Vouchers > F8: Sales |
| 2. | Select As Invoice |
During voucher creation, there is an additional field Price Level and it is already set for the selected party on the basis of assignment made earlier (the cursor skips the field). If you had not assigned any Price Level for the ledger earlier, the cursor moves to this field, allowing you to make a choice. On selecting the stock item and the quantity, the price is filled in automatically and the cursor skips the Rate and Amount fields also.