The "Institut Polytechnique de Paris" is a public scientific, cultural and professional institution. IP Paris' Erasmus+ 2021 project has focused mainly on internship mobility for students in the 5 schools and PhD students in the 2 doctoral schools. Since the new Charter was signed in 2020, the number of participants in the Erasmus+ program has risen substantially. The number of students involved in each project has remained more stable, with more than thirty students taking part. There has been a significant increase in the number of participants in the 2021 project, with 36 students on internship mobility programs. Up to now, we have given priority to internships to give our students the opportunity to gain practical international experience. Due to a lack of human resources and the absence of a full-time person to manage mobility, we have not been able to develop institutional agreements for study mobility. In this context, we have given priority to internship mobility. From a quantitative point of view, our objectives were therefore achieved.