The Canadian Occupational Performance Measure (COPM) is an individualised outcome measure intended to detect change in a client's perception of occupational performance over time. The aim of this study was to test the clinical utility of the Swedish version of the COPM. Data was collected from 27 occupational therapists in six focus groups. Emerging themes included goal-setting, preparations, limitations, interactions with clients, and impact on practice. The results indicated that the COPM is helpful in the goal-setting process and in planning treatment interventions. Therapists need knowledge about the theoretical foundation of the instrument and a personal interview technique. Problems were found using the instrument with clients who had poor insight or in acute settings. The COPM facilitated feedback on improvement over time. In summary, the COPM ensures a client-centred approach, facilitates communication within the rehabilitation team, and encourages therapists in their professional role.