NASA's Parker Solar Probe mission was launched on August 12, 2018; its main objective is to study the solar wind in the near solar environment, up to an unprecedented distance of just 9.5 solar radii from the Sun. Among the satellite's four instrument suites, FIELDS is dedicated to the in situ study of electric and magnetic fields. The observation service covers the SCM magnetic sensor, the only French instrument on board Parker Solar Probe, and the service activities cover calibration, processing and formatting for data archiving.