Acumatica's licensing model is the reason it belongs on this list. Instead of charging per user, it charges for the transaction volume and resources you consume, and gives you unlimited users. For a business where fifty people need to look something up and five people do the real work, that inverts the usual ERP cost calculation.
Warehouse staff, field technicians, branch managers and sales people can all have access without a licence conversation every time someone joins.
The product
Cloud native, genuinely so, with a modern browser interface and a proper mobile application. Financials, distribution, manufacturing, project accounting, field service and construction editions are all available. The customisation platform is well designed and lets a competent partner build real extensions without forking the product.
The API is comprehensive, which makes it a good choice for a business that intends to integrate rather than to buy everything from one vendor.
The South African reality
This is the caution. The local partner ecosystem is small. There are capable Acumatica partners in South Africa but not many, and your choice of implementer is narrow. South African VAT and statutory reporting are configured by the partner rather than shipped, so the partner's local experience matters enormously.
Pricing is in dollars and quoted on resource tier, which is harder to budget than a per user figure until you have a year of history.
Who should buy it
Businesses with many occasional users, particularly distribution, field service and construction. Companies that want a cloud native ERP with a real API. Buyers who have found a South African partner they trust, because that is the deciding factor here more than in any other product on this page.