OBJECTIVE: To investigate what factors need consideration for telehealth services for cancer supportive care, given the rapid transition to telehealth as a result of COVID-19. METHODS: A scoping review and a review of current guidance and guidelines provided by professional bodies, representing relevant discipline groups for cancer supportive care, were conducted. RESULTS: We identified 19 papers and 23 telehealth guidance documents. The results highlight how the characteristics of patient group and healthcare provider influence the acceptability and utility of the service and establish a minimum set of preconditions. The reviews primarily examined patient-focused difficulties or issues with acceptability and efficacy, with only a minority highlighting how provider issues might also be implicated. By contrast, the guidance and guidelines described a need to address skills gaps in providing and receiving support through telehealth. CONCLUSION: The capacity and willingness of services to adapt, in the context of COVID-19, is reassuring. It is important that the impact of the move to telehealth on service quality is assessed and systems put in place to ensure sustainability, acceptability, and adaptability. PRACTICE IMPLICATIONS: Key recommendations can be made to assist service telehealth optimisation, many of which apply irrespective of the specific service focus.