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Introduction to ERPNext

ERPNext is a 100% open-source ERP (Enterprise Resource Planning) system designed to help businesses manage their entire operations from a single platform. Built on the robust Frappe Framework, ERPNext provides comprehensive tools for accounting, inventory, manufacturing, CRM, and much more.
ERPNext is completely free and open-source, licensed under GPL-3.0. You can use it, modify it, and deploy it without any licensing fees.

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What is ERPNext?

Running a business is complex—handling invoices, tracking stock, managing personnel, and countless other tasks. While the market typically offers separate software for each function, ERPNext integrates all these capabilities into one cohesive system, completely free of charge. ERPNext replaces multiple disparate systems with a unified platform that covers:
  • Financial accounting and reporting
  • Inventory and order management
  • Manufacturing and production planning
  • Customer relationship management (CRM)
  • Human resources and payroll
  • Project management and tracking
  • Asset lifecycle management

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Core Features

Accounting

Complete financial management tools to track cash flow, record transactions, and generate comprehensive financial reports with real-time insights.

Order Management

Track inventory levels, manage sales orders and purchases, handle shipments, and optimize order fulfillment across your supply chain.

Manufacturing

Simplify production cycles, track material consumption, plan capacity, manage subcontracting, and monitor work orders from start to finish.

Asset Management

Manage assets from purchase to disposal—track IT infrastructure, equipment, and resources across all branches in one centralized system.

CRM & Sales

Manage leads, opportunities, customers, and sales pipelines. Track interactions and convert prospects into loyal customers.

Projects

Deliver projects on time and within budget. Track tasks, timesheets, expenses, and issues with full visibility into project profitability.

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Key Concepts

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DocTypes and Documents

ERPNext is built around the concept of DocTypes (Document Types). A DocType is like a database table or a form template. Examples include:
  • Customer
  • Sales Order
  • Item
  • Purchase Receipt
  • Journal Entry
Each instance of a DocType is called a Document. For example, “John Smith” would be a Customer document.

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Modules

ERPNext organizes functionality into modules:
  • Accounts: General ledger, invoicing, payments, taxation
  • Stock: Inventory management, warehouses, stock transfers
  • Buying: Purchase orders, suppliers, procurement
  • Selling: Sales orders, customers, pricing
  • Manufacturing: Bill of Materials (BOM), work orders, production
  • CRM: Leads, opportunities, campaigns
  • HR: Employee records, payroll, leave management
  • Projects: Tasks, timesheets, project tracking
  • Assets: Asset tracking, maintenance, depreciation

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Company and Multi-tenant Architecture

ERPNext supports multiple companies within a single installation. Each company can have:
  • Its own chart of accounts
  • Separate fiscal years
  • Independent warehouses and cost centers
  • Distinct currencies and tax structures
Always select the correct company when creating transactions to ensure proper accounting and reporting.

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Technology Stack

ERPNext is built on a modern, robust technology foundation:

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Frappe Framework

The Frappe Framework provides:
  • Backend: Python-based application server with database abstraction (supports MariaDB and PostgreSQL)
  • Frontend: JavaScript framework for building rich web interfaces
  • REST API: Comprehensive API for integrations
  • Authentication: User management and role-based permissions
  • Background Jobs: Task queue for async operations

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Frappe UI

The Frappe UI library powers the modern interface:
  • Vue.js-based components
  • Responsive design
  • Single-page application architecture

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Current Version

ERPNext version 17.0.0 (development) requires:
  • Python >= 3.14
  • Frappe Framework >= 17.0.0
  • MariaDB 10.6+ or PostgreSQL 12+
  • Node.js 18+ and npm

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Architecture Overview

# Example: Getting default company
import frappe
import erpnext

# Get the default company for current user
company = erpnext.get_default_company()
print(f"Default Company: {company}")

# Get company's default currency
currency = erpnext.get_company_currency(company)
print(f"Currency: {currency}")
ERPNext follows a clean architecture:
  • Controllers: Business logic for DocTypes
  • APIs: RESTful and custom endpoints
  • Reports: SQL and Python-based reporting
  • Pages: Custom single-page applications
  • Hooks: Event-driven customizations

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Use Cases

ERPNext is used by organizations worldwide across various industries:
  • Manufacturing: Track production, manage BOMs, plan capacity
  • Distribution: Handle complex supply chains and logistics
  • Retail: Point of sale, inventory, customer loyalty programs
  • Services: Project billing, timesheet tracking, resource planning
  • Education: Student management, fee collection, scheduling
  • Healthcare: Patient records, appointments, billing
  • Non-profits: Donor management, grant tracking, program accounting

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Why Choose ERPNext?

1

Zero Licensing Costs

Completely free and open-source under GPL-3.0. No per-user fees, no hidden costs.
2

Full Integration

All modules work together seamlessly—changes in inventory automatically update accounting.
3

Customizable

Extend and customize without touching core code. Add custom fields, scripts, and workflows.
4

Modern Technology

Built with Python and JavaScript on a proven, actively maintained framework.
5

Active Community

Thousands of users, developers, and service providers worldwide. Enterprise support available.

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Learning Resources

Frappe School

Free courses on ERPNext and Frappe Framework from the core team and community experts.

Official Documentation

Comprehensive user and administrator documentation with guides and tutorials.

Discussion Forum

Ask questions, share solutions, and engage with the ERPNext community.

GitHub Repository

Source code, issue tracking, and contribution guidelines.

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Next Steps

Ready to get started? Here’s your path forward:
  1. Try the Demo: Experience ERPNext live at erpnext-demo.frappe.cloud
  2. Quick Installation: Follow our Quickstart Guide to run ERPNext in minutes
  3. Full Setup: Check out the Installation Guide for production deployments
  4. Learn: Take courses on Frappe School to master ERPNext
New to ERP systems? Start with the quickstart guide to understand the basic workflows before diving into customization.

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