Duplicate Entry Blocker

What This TDL Does

The Duplicate Entry Blocker prevents operators from creating vouchers with duplicate invoice numbers or references. When someone tries to enter an invoice number that already exists, Tally shows a warning and blocks the entry, ensuring data integrity.

Problem It Solves

Duplicate invoice numbers cause reconciliation nightmares, GST filing errors, and customer confusion. This TDL proactively prevents duplicates at entry time rather than discovering them during audits.

Who Should Use This

• Businesses with multiple data entry operators
• High-volume transaction companies
• Any business needing strict invoice number control

Business Benefits

• Data Integrity: Unique invoice numbers guaranteed
• Error Prevention: Stop mistakes before they happen
• GST Compliance: No duplicate invoice issues in filing
• Easy Audit: Clean records without duplicates