What causes Error 2150 'Duplicate IRN' in Tally Prime and how do I fix it?

Error 2150 occurs when an IRN has already been generated for that invoice number on the IRP portal. Fix: Do not resubmit. Open the e-Invoice report in Tally and click 'Get IRN Info' or update the existing IRN.

How do I resolve 'Distance Not Found' error when generating E-Way Bills in Tally Prime?

Check that both Consignor and Consignee PIN codes are valid. Leave distance blank in Tally Prime (portal auto-calculates) or use Alt+L to calculate distance on NIC portal. If same PIN, enter minimum 1 km.

Why does Tally Prime show 'Invalid HSN Code' during e-invoicing?

Businesses with turnover > ₹5 Cr must use valid 6-digit HSN codes. Check Alter Master > Stock Item > HSN/SAC details and update to 6 digits.

How does TrulyInvoice AI prevent invoice generation errors in Tally Prime?

TrulyInvoice AI parses supplier PDFs, auto-extracts line items, HSN codes, and tax totals, posting verified F9 Purchase Vouchers directly into Tally Prime via Port 9000 local sync in 15 seconds.

How to Fix E-Way Bill & IRN Generation Errors in Tally Prime (2026)

Quick Summary: How Do You Fix E-Way Bill & IRN Generation Errors in Tally Prime?

Go to Gateway of Tally > Display > Statutory Reports > GST > e-Invoice (or e-Way Bill). Drill down into 'Uncertain Transactions' or 'Rejected by IRP'. Common fixes: For Error 2150 (Duplicate IRN), click 'Get IRN Info'; for Invalid HSN, update stock master to 6 digits; for Distance error, verify PIN codes or leave blank for portal auto-calculation.

Error 2150 Fix: Click 'Get IRN Info' on report or issue Credit Note if deleted.
Invalid HSN: Mandatory 6-digit HSN required for AATO > ₹5 Crores.
Distance Error: Ensure PIN codes match state; same PIN requires min 1 km distance.
Invalid GSTIN: Use Alt+L in Ledger Master to fetch verified portal GSTIN details.

1. Top Tally Prime E-Invoice & EWB Error Troubleshooting Matrix

Common error codes, root causes, and exact Tally Prime resolution steps:

Error Message / Code	Root Cause Description	Recommended Tally Prime Resolution
Error 2150: Duplicate IRN	Invoice number already registered on government IRP	Click 'Get IRN Info' to sync existing IRN or use Credit Note
Invalid HSN/SAC Code	HSN code is less than 6 digits or non-existent	Alter Stock Item master > update to valid 6-digit HSN
Distance Not Found	NIC portal unable to map Pin-to-Pin distance	Verify PIN codes; leave distance blank for auto-calc or enter > 1km
Invalid / Suspended GSTIN	Party GSTIN cancelled or non-filing blocked	Press Alt+L in Ledger Master to verify or convert to B2C

Automate Purchase Bill Verification for Tally Prime

Prevent internal data entry typos that cause invoice generation errors.

Data entry mistakes in purchase vouchers (typing errors in invoice numbers or date formats) prevent Tally Prime from auto-matching downloaded GSTR-2B entries.

TrulyInvoice AI Solution: Upload supplier PDF bills or WhatsApp scans. AI auto-extracts line items and posts F9 Purchase Vouchers directly to Tally Prime in 15 seconds via Port 9000 local sync.

How to Fix E-Way Bill & IRN Generation Errors in Tally Prime (2026)

Quick Summary: How Do You Fix E-Way Bill & IRN Generation Errors in Tally Prime?

1. Top Tally Prime E-Invoice & EWB Error Troubleshooting Matrix

Automate Purchase Bill Verification for Tally Prime

Stop Manual Voucher Entry.