This 4-day online course covers 4 different modules for trainers to enhance their understanding of EOSC and various related topics alongside their ability to integrate it into their training activities. Note, this training is not an introduction to EOSC, and so participants are expected to have some knowledge of EOSC and the EOSC Portal. DANS is a partner in the training work package via OpenAIRE and leads three of the four sessions.