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GST E-Invoice and E-Way Bill

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Required Apps Invoicing (account)
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Technical Name zb_gst_einvoice_irn
License OPL-1
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Technical Name zb_gst_einvoice_irn
License OPL-1

Introduction

GST E-Invoice & IRN Integration in Odoo enables seamless compliance with Indian GST regulations by allowing users to generate electronic invoices and obtain Invoice Reference Numbers (IRNs) directly from Odoo. The module also supports creating e-Way bills—either using the IRN or independently. Integrated through the MasterGST API, it ensures secure and efficient communication with government GST portals, streamlining invoicing workflows and enhancing regulatory accuracy

Key Features

  • Generate E-Invoices (GST): Create compliant e-Invoices and automatically obtain the IRN from government systems.

  • E-Way Bill Generation: Issue e-Way bills using the generated IRN—or directly without IRN—with details tracking like validity and bill number

  • Dedicated Tabs: View structured information via “IRN Details” and “E-Way Bill Details” tabs in the invoice interface for better visibility

  • MasterGST API Integration: Securely connect to government GST systems for e-invoice and e-way bill processing, using credentials managed within Odoo

  • Configurable Workflow: Set up default behaviors either at the company level or specific journals—journal-level settings take precedence

Benefits

  • Ensures compliance with GST mandates by automating e-Invoice and IRN processes

  • Reduces manual tasks and minimizes errors in regulatory filings

  • Streamlines operations via integrated workflows—from invoice issuance to e-Way bill generation

  • Enhances auditability with clear invoice tracking and structured government reference data

Compatibility & Technical Details

  • Required Modules: Standard Accounting (account) module and developer mode enabled. Setup includes user group assignment for “Manage E-invoice (India)” access

  • Technical Name: zb_gst_einvoice_irn (as shown in module naming conventions)

  • License: Presumed OPL-1 (standard for Odoo paid modules)

Installation Steps:

  1. Place the module folder (zb_gst_einvoice_irn) into your Odoo Add-Ons directory.

  2. Enable Developer Mode and update the apps list, then install the module

  3. Assign the “Manage E-invoice (India)” user group to appropriate users.

  4. Configure e-invoice settings at either the company or journal level.

  5. Upon confirming an invoice, use the Actions dropdown to generate IRN, e-Invoice, or e-Way bills.

GST E-INVOICE AND E-WAY BILL

Overview


Introducing ZestyBeanz's 'E-way Bill and GST E-Invoice' module is a powerful add-on designed to simplify and automate the creation of electronic invoices and e-way bills for businesses registered under the GST Act in India. Integrated seamlessly into your Odoo environment, this module streamlines the entire invoicing workflow, ensuring compliance with the latest GST regulations and making the process of managing e-way bills and Invoice Reference Number (IRN) generation as easy as possible.

Key Features


Two Ways to Generate E-Way Bills : Generate e-way bills either using an IRN for validation or independently when the IRN is unavailable.

E-Way Bill and IRN Details : The invoice form view has dedicated tabs for E-Way Bill Details and IRN Details, enabling organized record-keeping.

MasterGST API Integration : The module integrates with MasterGST to send e-way bill and e-invoice requests to the government GST portal via API.

Credential Management : MasterGST credentials (Client ID, Secret ID, Username, and Password) are securely managed in the Dashboard for both sandbox and production environments.

After Installing the Module.

Navigate to settings menu and select a user then enable the 'Manage E-invoice(India)' group to get the module functionalities.

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Configurations

1.MasterGST E-invoice Configurations

Configure the e-invoice and e-way bill details in either the Company Master or Journal . When both configurations are present, the Journal configuration will take priority.

=> Configure in Journals

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=> Configure in Company Master

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Working

Navigate to Invoicing > Customers > Invoices .

Create a new Invoice and confirm.

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Within the invoice form view, under the Actions dropdown, you will find the following options.

1. Create E-Invoice (GST) : Generates an electronic invoice and IRN, ensuring compliance with GST rules.

2. Create E-Way Bill (GST) Using IRN : Creates an e-way bill using the previously generated IRN.

3. Create E-Way Bill (GST) : Generates a new e-way bill directly, displaying fields such as e-way bill number, creation date, and validity period.

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Method 1: Direct Generation

Configure all the details in " E-Way Bill Details " tab of corresponding invoice.

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Select " Create E-Way Bill (GST) " option under server actions.

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System generates E-way Bill without requiring IRN

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Method 2: Using IRN

Configure all the details in " E-Way Bill Details " tab of corresponding invoice.

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Select " Create E-Invoice(GST) " option under server actions.

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Generates IRN details and show in IRN Details tab.

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Select " Create E-Way Bill(GST) Using IRN " option under server actions.

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System generates E-way Bill using IRN.

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Technical Process Flow

1.ERP sends request to MasterGST with credentials

2.MasterGST validates and forwards request to government GST portal

3.Government portal processes request and returns E-way Bill details

4.System updates invoice with generated information

GST Invoice Report

Users can find the GST invoice report within the Invoice record in the form view. A dedicated button labeled " Print GST Invoice " allows users to download the GST invoice report directly.

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