Stop mistakes before they happen. You can write TDL that prevents saving a voucher if the "HSN Code" is missing or if a sales invoice is being created for a customer with an expired credit limit.
To run a TDL file in Tally.ERP 9, the file path must be specified in the system: tdl for tally erp 9
Adding digital signatures, modifying margins to fit pre-printed letterheads, or inserting product specific QR codes. Security Controls Stop mistakes before they happen
Open and go to F12: Configuration > Product & Features . Press F4: Manage Local TDLs . modifying margins to fit pre-printed letterheads