Acumatica delivers a set of cloud-based business software applications with dashboards, reporting tools, integrated document management, centralized security, and customization tools.
SAP S/4HANA Cloud is a modular cloud ERP. Embedded with AI and analytics, it helps business run anywhere, in real time. SAP S/4HANA Cloud can be deployed either on premise, in the cloud, or in a hybrid combination.
Microsoft Dynamics 365 is a CRM providing sales, marketing, and service functionality. It is offered as SaaS and on-premise. Dynamics 365 is part of the larger Dynamics suite of business intelligence and ERP products.