Odoo vs SAP Business One – Which ERP Fits Your DACH SME?
SAP Business One (SAP B1) has been SAP's mid-market answer since 2002. With more than 75,000 customers worldwide, B1 ranks among the most widely deployed mid-market ERP systems and has a strong footprint in the German-speaking region. The current version 10 runs on Microsoft SQL Server or on SAP HANA – the latter delivering significantly better performance and richer analytics.
Companies evaluating SAP Business One today routinely compare it with Odoo Enterprise. This guide goes deep: what each system genuinely does, where they diverge, what they cost, and when migrating from B1 to Odoo is the economically sound move.
Quick verdict: SAP Business One is a mature ERP platform with particularly strong accounting, inventory, and production functionality plus deep DACH localisation. Odoo offers comparable functional breadth with a more modern web interface, materially lower TCO, and integrated e-commerce, CRM, and marketing modules. The choice hinges on how much value you place on the SAP brand and partner ecosystem – and how aggressively you want to optimise total cost of ownership.
The two systems at a glance
SAP Business One v10
SAP B1 is developed by SAP SE and sold and implemented exclusively through certified SAP partners. Version 10 offers:
- Architecture: client/server application with a classic Windows client, complemented by a WebClient variant for browser-based access (with limited functional parity)
- Database: Microsoft SQL Server or SAP HANA. HANA delivers in-memory performance and richer analytics through Pervasive Analytics and Crystal Reports
- Deployment: on-premise, partner-hosted, or SAP Business One Cloud
- Localisation: full DACH localisation with DATEV interface, fixed-asset accounting, SKR03/SKR04
- Industry solutions: through certified SAP-partner add-ons (e.g. Versino, COSMO Consult, Boyum, B1 Usability Package)
Odoo Enterprise
Odoo Enterprise is the commercial edition of the Odoo platform developed by Odoo SA in Brussels. The architecture differs fundamentally:
- Architecture: fully browser-based, mobile-optimised, identical feature set across devices
- Database: PostgreSQL as the single supported backend – performant and reliable
- Deployment: Odoo Cloud (Odoo SA-hosted), partner hosting in German data centres, or on-premise
- Localisation: German localisation with GoBD compliance, DATEV export, fixed-asset accounting
- Extensibility: open source code in Python and XML; the official Apps Store with 30,000+ extensions
Functional comparison
Accounting and finance
SAP B1 sits at eye level with the best mid-market products on the market here. Accounting logic is deep, consolidation functions mature, the DATEV connection has run reliably for years. Functional depth in fixed-asset accounting, dunning, and multi-company is comprehensive.
Odoo Enterprise has, since version 17, offered the same depth in German accounting – including GoBD certification, DATEV document transfer, full UStVA, and E-Bilanz. The interface is markedly more modern and reduces onboarding effort for new staff noticeably.
| Function | SAP Business One | Odoo Enterprise |
|---|---|---|
| Charts of accounts SKR03/04 | ✓ | ✓ |
| GoBD compliance | ✓ Native | ✓ Native (localisation module) |
| DATEV export | ✓ Native | ✓ Native |
| DATEV document transfer | ✓ Native | ✓ Via extension |
| Fixed-asset accounting | ✓ Very strong | ✓ Strong |
| Dunning | ✓ Configurable | ✓ Configurable |
| Group consolidation | ✓ B1 Intercompany | ✓ Multi-Company |
| HBCI/FinTS bank feed | ✓ Via add-on | ✓ Optional |
Inventory and production
SAP B1 has traditionally strong warehouse and production capabilities. Multi-warehouse, lot and serial tracking, MRP, multi-level BOMs, capacity planning – all in the standard. Add-ons like Boyum or Versino extend functionality into specific verticals (tool-making, injection moulding).
Odoo MRP covers the same functional area and adds integrated quality control, maintenance, PLM, and IoT integration. Configuration is usually faster because no separate add-ons are required for standard requirements.
CRM, sales, and marketing
A clear Odoo advantage. SAP B1 includes a basic CRM module, designed more for contact management; serious pipeline management typically runs via B1 Usability Package or a separate SAP Sales Cloud product. Marketing automation does not exist in B1.
Odoo includes pipeline management, email marketing, lead scoring, and marketing automation as integrated modules. A lead from the webshop flows directly into the sales funnel – no connectors, no integration plumbing.
E-commerce
SAP B1 itself ships no webshop. Connections to Shopware, Adobe Commerce, or Shopify run via connectors (often through partners like Tradebyte or Shopware-Connector). Odoo includes webshop, website builder, and B2B portal as integrated modules – product data is maintained once and surfaces automatically in the storefront.
Customisation and extensibility
SAP B1 is extended via the SDK in C# or via the Service Layer (REST API). Customisation is possible but structurally demanding – deeper changes require certified SAP developers. SAP B1 developer hourly rates in DACH typically run €140–€220.
Odoo is extended in Python and XML. Source code is openly accessible; the learning curve is flatter; the talent pool considerably larger. Odoo developer hourly rates typically run €95–€160.
Cost comparison
Licence cost
| Item | SAP Business One | Odoo Enterprise |
|---|---|---|
| Full user / month (subscription) | ~€90–120 | ~€25–40 |
| Full user (perpetual) | ~€3,000–3,500 one-off + 18 % maintenance/year | not available |
| Minimum users | typically 5 (partner-dependent) | 1 |
| Database licence | SQL Server or HANA extra | included in subscription |
Implementation cost
For a typical mid-market project with 25 users, integrated accounting, inventory, and production:
- SAP B1: €50,000 to €150,000 implementation. Project management, customisation, testing, and training included.
- Odoo Enterprise: €22,000 to €60,000 implementation. Quick Start for SMEs from €8,900.
Three-year TCO
In our experience, Odoo runs 30–50 percent below the total cost of ownership of a comparable SAP B1 implementation. The advantage flows mostly from lower licence cost and integrated feature breadth, which reduces separate add-on cost.
SAP brand strength vs. open-source flexibility
SAP Business One carries the brand and trust of one of the world's largest software companies. For many family-owned and conservative mid-market businesses this is an important purchase criterion – particularly for investment decisions expected to hold for five to ten years.
Odoo brings a different strength: open source code, data sovereignty, faster innovation cycles (roughly two major releases per year), and lower dependency on a single partner. You can change implementation partners without changing platform – an advantage that becomes apparent only after three to five years, but then becomes substantial.
When is SAP Business One the right choice?
- You operate in an industry with a strong SAP B1 add-on solution (e.g. specialised industry packages for tool-making, foundries, or specific wholesale structures)
- Your parent or sister company runs SAP S/4HANA and you want technical consistency
- You value the SAP brand and the dense DACH partner ecosystem more than the lower TCO of alternatives
- You already have SAP expertise on your team or with engaged consultants
When should you switch to Odoo?
- You want lower licence and implementation cost without functional compromise
- You operate or plan a webshop, B2B customer portal, or multiple e-commerce channels
- You want CRM, marketing automation, and HR without additional SAP or third-party licences
- You want a modern web interface and mobile apps with full feature parity
- You want data sovereignty and the option to run on your own servers
- Your B1 maintenance contracts are running out and you are looking for a future-proof alternative
Migration from SAP B1 to Odoo
Migrations from SAP B1 are methodically straightforward because B1 has an openly documented SQL database structure:
- Data extraction: master and transactional data directly from the B1 SQL server, or via the DI API
- Mapping: transfer into the Odoo data model, including charts of accounts and VAT code adjustment
- Customisation evaluation: assessment of existing B1 add-ons – which are replaced by Odoo's standard modules, which need reimplementation
- Test run: complete test migration into a sandbox with balance reconciliation
- Cutover: clean cutover at quarter- or year-end
- Hypercare: 60 days of intensive post-go-live support
Typical project length for a B1-to-Odoo migration: 14 to 24 weeks.
Final take
SAP Business One and Odoo Enterprise are both mature ERP platforms for the German Mittelstand. Companies that weight the SAP brand and the deep partner ecosystem above TCO and feature breadth remain well served by B1. Companies that value a modern web interface, integrated e-commerce, lower licence cost, and data sovereignty are better served by Odoo – and that describes the majority of mid-market situations we work with daily.