iDempiere ERP Modules: The Complete Guide to Every Module and Use Case (2026)

Finance & Accounting

The foundation. iDempiere ships with a full double-entry accounting engine supporting multiple accounting schemas, multi-currency, multi-organization consolidation, and real-time posting from all sub-ledgers. Covered out-of-the-box:

• General Ledger with journal entries, recurring journals, and allocation/distribution
• Accounts Receivable: invoices, receipts, applications, dunning
• Accounts Payable: bills, payments, bank reconciliation, expense reports
• Fixed Assets: acquisitions, depreciation schedules, disposals
• Period close, currency revaluation, and year-end processing
• Multiple costing methods: Average, FIFO, Standard, Last PO

Configuration focus: chart of accounts, accounting schema, tax rates, document types, and bank master. For Indian deployments we add GST rule configuration and e-invoicing (IRN / GSTR-1) as custom modules.

Sales & Order Management

The Sales module covers the full quote-to-cash cycle: leads → opportunities → quotes → orders → shipments → invoices → receipts. Key capabilities include price lists (by customer, by currency, by version), discount schemas, commission structures, credit limits, and multi-step approval workflows.

For B2B sellers, we configure hierarchical price lists (customer-specific pricing overriding channel pricing overriding default). For B2C operations we layer eCommerce sync (see our Shopify integration guide). POS integration is available via the Adaxa POS plugin.

Purchasing & Procurement

Requisition → RFQ → Purchase Order → Goods Receipt → Invoice Match → Payment. Standard procurement approvals are configurable via workflow. Vendor master includes performance tracking (on-time delivery, quality scores, price variance). Landed cost modeling captures freight, duty, and insurance against the correct receipt.

Inventory & Warehouse

Multi-warehouse, multi-location, with strong support for lot tracking, serial numbers, expiry dates, and attribute sets (size/color/grade). Physical counts, cycle counts, and inter-org transfers are all first-class. For operational warehouses we often layer our Warehouse Picking mobile app on top for bin-to-bin put-away, pick-pack-ship, and RF scanning.

Common extensions: 3PL billing (per-pallet, per-transaction), shelf-life alerts for pharma, FEFO picking for perishables, and cross-docking for distribution operations.

Manufacturing (MRP & Production)

iDempiere's Libero Manufacturing module provides bills of materials (multi-level), routing, work orders, capacity planning, and MRP. It handles discrete, process (with co-products and by-products), and repetitive manufacturing scenarios. For heavier shop-floor needs (MES integration, OEE) we layer in custom extensions or integrate with a dedicated MES product.

HR & Payroll

The base HR module covers employees, contracts, attributes, and a configurable payroll engine with earnings/deductions and posting to GL. For Indian deployments we bring our own HRMS extension that adds attendance, leave, PF/ESI/PT/TDS, Form-16, and GratuityCalc. Similar localizations exist for Spain, Brazil, and Germany in the community.

CRM & Customer Service

Lead capture, opportunity pipeline, activity tracking, and case management are all in the base product. For more aggressive sales teams we build a Sales CRM mobile app on top so field reps have offline-ready access to their accounts, visit plans, route maps, and order-capture forms.

Project Management

Project master, project phases, task assignment, time booking, expense capture, WIP valuation, and project P&L. A natural fit for service businesses (consulting, engineering, construction) that need to invoice milestones and track margin per project.

Business Intelligence & Reporting

Every iDempiere window can be exported to Excel/PDF/CSV. Reports use Jasper or BIRT for pixel-perfect documents. For self-service BI we run a read-replica of the Postgres database and point Metabase, Superset, or Power BI at it. AI-assisted reporting ("show me my top 10 customers by margin this quarter") is an area where we're actively building extensions.

Popular Add-Ons We Bring to Client Projects

• Shopify / WooCommerce / BigCommerce / WinxCommerce connectors
• DHL / FedEx / UPS / FirstFlight carrier plugins
• WhatsApp Business notifications (order confirmation, shipment alerts)
• eSign + document vault (for quotes, invoices, approvals)
• AI-assisted reporting (“Ask the ERP” voice/chat interface)
• Industry-specific packs: 3PL billing, Pharma compliance, Food-service traceability