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"Use Edit Log for transactions/masters, and digital signature for invoices/reports with Release 2.1. Download NOW!"
https://help.tallysolutions.com/docs/te9rel60/Error_warning_message/Error_Messages_Introduction.htm

Error Messages - Introduction

You will find the cause and solutions to error messages that appear in Tally.ERP 9 in the links below. Click a link to view the error messages module-wise.

     Upload

     Installation

     Voucher Entry

     E-mail

     Export

     Printing

     Data Split

     TSS