Despite many attempts to provide appropriate tools for supporting stroke patients in their care and rehabilitation processes, there is still room for improvement. We propose an online care and rehabilitation planning tool as a potential eHealth service for stroke patients. The aim is to study the care professionals' perceived usefulness of the planning tool. We developed and presented a functional prototype to a neurology team in Stockholm. Three focus groups were performed with the care professionals in the team and the data were analysed based on the unified theory of acceptance and use of technology. Although care professionals mentioned challenges such as time limitation for using the tool and issues related to the responsibility of the system, they were positive towards the tool and its potential usefulness in ease of understanding the rehabilitation process and support for collaboration.