All four are ERP systems. ERP stands for enterprise resource planning: one system that runs your accounts, purchasing, sales orders and stock, and often projects, service and manufacturing too. The four differ less in what they can do than in who they are built for, how you buy them and who supports you afterwards.
Here is the short version. Business Central is Microsoft’s ERP for small and mid-sized organisations. You buy it through a Microsoft partner, and it works closely with Outlook, Excel and Teams. NetSuite is Oracle’s cloud ERP, sold on an annual subscription by NetSuite and its partners. SAP offers SAP Business One for small and midsize businesses, sold through SAP partners, alongside S/4HANA, its flagship ERP. Odoo is a suite of modular apps with a free, open-source Community edition and a paid Enterprise edition. Open source means the code is published and free to use and change.
If your search said Dynamics 365 rather than Business Central, note that Dynamics 365 is a family of Microsoft apps. For a mid-size firm, its ERP is usually Business Central. Larger, more complex groups look at Dynamics 365 Finance and Supply Chain Management, the closer match for SAP S/4HANA.
What size of business each suits
Microsoft describes Business Central as “a business management solution for small and mid-sized organizations”. It covers finance, sales, purchasing, stock, projects and fixed assets, and its Premium licence adds manufacturing and service management. It runs in Microsoft’s cloud, and an on-premises version, installed on your own servers, is also available.
NetSuite runs only in the cloud. Its core platform includes accounting, stock, order management and tax, with further modules priced separately. It suits growing firms that want one supplier for both the software and its hosting.
SAP is really two choices for this audience. SAP Business One is designed for small and midsize businesses and can run in the cloud or on premises. S/4HANA is the SAP product usually compared with Dynamics 365 Finance and Supply Chain Management at the larger end of the market.
Odoo is built from separate apps for accounting, stock, sales, CRM, websites and more, so you can start with one app and add others. It suits firms that want to begin small, or that value open source and the freedom to host the software themselves.
How each is sold and supported in the UK
Business Central can only be bought through Microsoft’s Cloud Solution Provider programme, which in practice means through a partner. The partner usually implements it and provides your first line of support. Licences are per user per month. At the time of writing, Microsoft’s Business Central pricing page lists Essentials at £61.50, Premium at £84.60 and Team Members, for lighter users, at £6.20, each per user per month, paid yearly and excluding VAT. The UK version can submit VAT returns to HMRC under Making Tax Digital, HMRC’s rules for filing VAT from software.
NetSuite’s own pages describe an annual licence fee made up of the core platform, any optional modules and the number of users, plus a one-off implementation fee. NetSuite sells directly and through partners.
SAP Business One is sold and implemented through SAP’s accredited partners, who also provide local support.
Odoo publishes per-user monthly prices on its website, including a free plan for a single app. You can buy from Odoo directly or through an Odoo partner, and host on Odoo’s own cloud, on its Odoo.sh platform or on your own servers.
Whichever you choose, ask who will support you after go-live, the day you switch over, and how. Ask whether support is based in the UK, what hours it covers and what it costs.
What a move involves
The steps are much the same whichever system you pick. You agree a go-live date, ideally the start of a financial year or at least of a month. You map how you work today and decide what to change. You clean and move your data: the chart of accounts, customers, suppliers, items and opening balances, plus open invoices and orders. You decide how much history to bring across, as balances or in full detail. You rebuild the links to your bank, payroll, online shop or other systems. Then you test with real transactions, train your staff and run your first month end with support on hand.
The timeline depends more on your data and processes than on the product. A firm with clean data and simple processes will move faster than one with years of workarounds, whichever system it chooses.
How to shortlist
Start from your own processes, not the feature lists. Ask each vendor or partner to show your month end, a VAT return under Making Tax Digital, a stocktake and your most awkward order, using your own data. Ask for references from UK firms of your size and in your sector.
Some fits are natural. If your business already runs on Microsoft 365, Business Central’s links with Outlook, Excel and Teams count for a lot. If you want one supplier for software and hosting, look closely at NetSuite. If your parent company or main customers run SAP, Business One may make life simpler. If you want to start with one or two apps at low cost, or you want open source, look at Odoo.
A note from us
Spark 365 is a Microsoft partner that works on Business Central, so we are not neutral in this comparison. If Business Central makes your shortlist, we are happy to show it working with your own processes, and to tell you plainly if it is not the right fit.