Community is the open-source version — free to download, use and self-host, with a large active developer community and frequent updates. It includes many of the core apps (CRM, Sales, Inventory, Invoicing, Manufacturing, Project) but lacks some of the more advanced Enterprise-only modules and features. Enterprise is a subscription model (per user per month) that adds: more advanced accounting features (bank synchronisation, asset management, budgets), full HR and payroll modules, eCommerce with advanced features, a mobile app, Studio (a no-code customisation tool), Odoo's official support team and cloud hosting options. Enterprise also gets priority access to new module releases and officially supported upgrade paths. For most businesses implementing Odoo as their core ERP, Enterprise is the right choice — the subscription cost is typically justified by the advanced features and the support. Community is better suited to businesses with strong technical in-house capability who want to customise heavily and self-host. We discuss the Community vs Enterprise decision during the initial consulting session.

For light to medium manufacturing, yes — Odoo handles bill of materials, production orders, material requirements planning (MRP), work orders and basic shop floor reporting effectively. For complex discrete manufacturing, batch traceability at the serial number or batch level, automotive production scheduling or pharmaceutical GxP compliance, SAP Business One is typically the stronger choice — Odoo's manufacturing module covers the basics well but lacks the depth in regulated-industry compliance, multi-level BOM complexity and detailed production reporting that SAP B1's manufacturing module provides. The honest guidance: if your manufacturing is primarily make-to-order with straightforward BOMs and your main requirement is connecting production to inventory and invoicing, Odoo handles this well. If you need detailed batch genealogy, strict first-expiry-first-out compliance, work centre capacity planning or pharmaceutical regulatory documentation, SAP Business One (or S/4HANA at larger scale) is a better fit. We make this recommendation explicitly based on your actual manufacturing process — not as a way to upsell to the more expensive product.

A focused first-phase Odoo implementation — typically CRM, Sales, Inventory and Accounting for a trading or services business — runs 6–10 weeks. Adding manufacturing, HR or eCommerce in the same phase: 10–16 weeks. Full enterprise deployment with custom development, integrations and phased module rollout: 4–9 months delivered in 2–3 waves. Odoo's modular architecture actively supports a phased approach: implement the highest-priority modules, go live on a working system, stabilise, then add the next layer in a second implementation phase. This is different from SAP Business One implementations, which tend to be more comprehensive in the first phase because the SAP data model needs to be established completely before going live. The phased Odoo approach reduces go-live risk and gets your team onto a working system faster — which also means earlier return on investment from the most critical modules while less-urgent functionality follows in subsequent phases.

We migrate master data (customers, suppliers, products, chart of accounts) and opening balances as standard. For historical transactions — invoices, payments, stock movements — the decision depends on your business requirements and the migration cost. Full transaction history migration is expensive and time-consuming because historical data from legacy systems (Tally, QuickBooks, spreadsheets, older ERP) rarely maps cleanly to Odoo's data model without manual cleansing and transformation. Our recommendation for most businesses: migrate master data and opening balances, maintain the old system in read-only mode for historical reference, and start Odoo from a clean date. This is the most pragmatic approach — it gets you live on Odoo faster, with clean data, and the old system remains accessible for the rare occasion when you need to look up a historical transaction. For businesses where regulatory requirements mandate that historical transaction records be in the active system (some pharma, financial services scenarios), we scope the full migration explicitly and account for the additional time and cost it requires.

Odoo includes role-based access control (each user sees only the menus and data their role permits), record-level security rules, audit logging of data changes and access events, data export controls and password policy enforcement. For GDPR compliance specifically: Odoo supports data subject access requests (the ability to export all data held on a specific person), data anonymisation for departed employees or former customers, consent management for marketing contacts and data retention policy configuration. These features exist in the platform — but GDPR compliance is not automatic; it requires configuring the right access controls, setting appropriate retention policies and implementing the right procedures around how your team handles personal data. We configure these settings during implementation for businesses operating in GDPR jurisdictions. For Odoo Enterprise cloud-hosted deployments, Odoo's infrastructure is hosted in ISO 27001-certified data centres. For self-hosted Community deployments, your security posture depends on your own server and network configuration — which is a responsibility your IT team must own.