While updating the price list, by default only those stock items whose prices were last updated will appear. You can view all the stock items (for the selected stock group) by enabling the configuration option.
Gateway of Tally > Alter > Price List (Stock Group).
Alternatively, press Alt+G (Go To) > Alter Master > type or select Price List (Stock Group) > and press Enter.
Press F12 (Configure) > set the option Show All Items for Price Level to Yes.
Select the required Stock Group > select the Price Level > provide the Applicable From date > and press Enter.
The Price List displays all the stock items of the selected group.