---
title: "FAQs On E Invoice Generation Under Taxation | BUSY Software Help"
description: "Get the helpful guide for FAQs related to E Invoice Generation under Taxation. BUSY Software Help & Support"
canonical: "https://busy.in/faqs/taxation/e-invoice-generation/119/"
---

# FAQs On E Invoice Generation Under Taxation | BUSY Software Help

[BUSY FAQs](https://busy.in/faqs/) → [taxation](https://busy.in/faqs/taxation/) → e invoice generation

## Will there be any disruption in e-invoicing during BUSY migration or upgrade?

No,during the migration or upgrade process of BUSY, there may not be a possibility of disruption in e-invoicing.

## Why is vehicle number missing from e-invoice? Where can I find it?

The vehicle number is not mandatory for E Invoice, so that on e invoice it will not appear.

## How is the e-invoicing data validated before transmitting to IRP?

When you generate e invoice in BUSY, then it will automatically validate GSTIN, HSN, etc before submitting IRP.

## How many e-invoices can I generate per month in BUSY?

There is no specific limit on the number of e-invoices that you can generate per month in BUSY.

## Do I need to update party master for generating e-invoices?

Yes, you need to update station and pincode details in account master for generating e invoice from BUSY.

## Can I modify or edit the auto-generated e-invoice and e-waybill numbers in BUSY after invoice generation? If yes, how?

No, you cannot modify or edit the auto-generated e-invoice and e-waybill numbers in BUSY after invoice generation.

## How long does it take to cancel an e-invoice through BUSY and the GST portal?

You can cancel e-invoice in BUSY immediately after generate e-invoice but within 24 hours of e-invoice generate

## Is there a size/character limit for invoice/ voucher number when generating e-invoices in BUSY?

Yes, as per government rules there is size/character limit for invoice/voucher number while generating e-invoice in BUSY.

## Do I need to have a GSTIN to use e-invoicing feature of BUSY?

Yes, Supplier must be registered on GSP portal and have an active GSTIN to generate E invoices.

## How can I troubleshoot errors on the e-invoice portal during login?

If you are facing error during login on e-invoice portal You need to contact E-invoice portal support

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