TDL is a proprietary, non-procedural, object-oriented language. Unlike traditional programming languages like C++ or Java where you define how to do something, in TDL, you define what you want. It is designed to allow developers to modify the user interface (UI), create new reports, and automate data entry without altering the core Tally engine. Why Use TDL Customization?
If you have purchased or downloaded a TDL (usually ending in a .tdl or .tcp extension), here is how to activate it: and go to the Gateway of Tally. Press F12 (Configure) > Product & Features . Press F4 (Manage Local TDLs) . Set "Load TDL Files on Startup" to Yes . tdl for tally erp 9
Use TDL to facilitate data exchange between Tally and third-party applications like Excel, CRM software, or web portals. Core Components of TDL Why Use TDL Customization
Custom TDLs to print barcode labels or shipping labels directly from the Physical Stock voucher. Learning TDL: Where to Start? Press F4 (Manage Local TDLs)
To understand TDL, you need to understand its hierarchical structure. Every visual element in Tally is built using these blocks: The starting point (e.g., the Gateway of Tally). Report: The container for the entire screen. Form: The visual layout within a report. Part: A section of a form (e.g., Header, Body, Footer). Line: Individual horizontal segments within a part. Field: The actual data entry or display point. How to Install a TDL File (.tcp) in Tally.ERP 9
The language is highly "re-usable." You don’t have to write code from scratch; you can "Alter" existing Tally objects. For example, if you want to add a field to the Ledger Master, you simply use the #Line command to modify the existing Tally line. Conclusion