The Transmission of Data IJG and Transmission of Data ETC modules are now available via the Monitoring menu in SFC2021.
The User Guide for ToD IJG is available here Transmission of Data (IJG) | 2021 Support Materials MS | SFC Support Portal (europa.eu) and for ToD ETC here Transmission of Data (ETC) | 2021 Support Materials MS | SFC Support Portal (europa.eu).