The short answer
ERP is a system (or set of modules) for processes such as finance, inventory, and procurement. A Digital Operating Platform is a design that connects business journeys, data, applications, and decision views into one operating experience—and ERP may be one component.
Why the concepts get mixed
Vendors often present ERP as an all-in-one platform. In practice, gaps remain in CRM, contracts, documents, and sector workflows unless operating model and integration are designed.
How to decide
Ask which journeys and decisions must be unified. Then decide which capabilities ERP covers and which need other applications or integrations inside the platform.
