SAP’s maintenance strategy gives SAP ERP 6.0 mainstream maintenance until the end of 2027 for eligible enhancement packages, with optional extended maintenance from 2028 to the end of 2030 at a premium, as SAPinsider summarises it. Older enhancement packages have earlier dates, so confirm your own position with SAP.
For many companies the natural next step is S/4HANA. For some mid-sized businesses, the date is also a reason to ask whether they need that much system at all. We implement Odoo, so read this knowing that. We have tried to make the test fair, because a bad fit helps nobody.
When Odoo is worth serious study
- You use a fraction of what ECC does, and much of your custom code covers gaps or old decisions.
- Your processes sit close to standard for your industry.
- You run one or a few legal entities, in countries where Odoo’s localisation meets your statutory needs.
- You want one system across finance, inventory, manufacturing, sales and service.
When to stay in the SAP world
- Regulated processes depend on validated SAP add-ons or industry solutions.
- You run a global template across many subsidiaries, with complex intercompany flows.
- Your transaction volumes need proving, and you can’t fund that proof before committing.
- Key partners require SAP-specific integrations you can’t replace.
Test it before you commit
- Inventory your custom code. Sort each item into keep, replace with standard, or delete. Many estimates shrink at this step, and that’s useful whichever way you go.
- Run your awkward processes. Put your three hardest real scenarios through Odoo with real data, not a vendor’s demo script.
- Check localisation early. Have your finance team and tax advisers review statutory reporting per country.
- Price all of it. Compare licences, implementation, integrations and internal time over several years, for each option.
If you do move, phase it
Avoid switching everything on one date. Clean master data first, then move one domain at a time, often finance first, followed by supply chain and production, with temporary integrations between old and new. Rehearse each cutover on a copy of real data, and keep a rollback plan you’ve tested. It takes more integration work, but it limits what can go wrong on any one day.
Extended maintenance can also serve as useful breathing room for a phased move, if your release qualifies. Whichever route you choose, starting the inventory now keeps your options open. Our ERP migration page shows how we run these projects.
Sources: SAPinsider, the 2027 deadline; SAPinsider, support deadlines. Check dates against your SAP contract.