Project 2017-1-PL01-KA103-036386 Erasmus + Higher education student and staff mobility within programme countries implemented in 2017/18 by the John Paul II Catholic University of Lublin (Katolicki Uniwersytet Lubelski Jana Pawla II) included the implementation of student and staff mobility in line with the Erasmus Charter for Higher Education 2014-2020. Within the project 185 mobilities in total were carried out, including 80 Student Mobilities for Studies, 53 Student Mobilities for Traineeships, 42 Staff Mobilities for Teaching and 10 Staff Mobilities for Training between programme countries in the framework of interinstitutional agreements between HEIs and agreements with other host institutions. The project objectives were in line with our university’s Erasmus Policy Statement and Internationalisation Strategy, which include inter alia increased number of student and staff mobilities through a larger number ofagreements within mobility programmes and broadening the scope of cooperation as well as promoting a larger number of mobilities in the faculties/institutes.The main objective of the project was the implementation of high-quality student and staff mobilities. The outcomes and the impact of the project with regard to participants (students, doctoral students and staff) include improved academic qualifications,professional, social and intercultural competences with a view to improving their personal development and employability in the Europeanlabour market and beyond, increased foreign language competences, increased participants' awareness and understanding of other cultures and countries, offering them the opportunity to build networks of international contacts. In addition, with regard to staff, the project contributed to improved qualifications to teach in foreign languages, networking opportunities with regard to future cooperation and joint educational and research projects, improved competences linked to their professional profiles as well as knowledge andknow-how transfer. With regard to our university,the project contributed to an increased level of internationalization, increased international renown, enhanced cooperation among HEIs during and after the duration of the project, improved qualifications of teaching and training staff, better recognition of competences gained through the learning periods abroad, increased awareness of students and staff of cooperation opportunities among HEIs which can be financed within the Erasmus+ Key Action1 and other Actions, networking opportunities with regard to future cooperation concerning joint educational and research projects as well as enhanced, diversified international contacts within European Union.Thanks to the project and promotional measures and measures to disseminate the projectoutcomes, our university enhanced its position at regional and local levels as a HEI with strong international cooperation. At national level, the project contributed to improved position of our university in the internationalization rankings of Polish universities. Finally, at European level, the project contributed to enhanced attractiveness of Polish higher education and increased competitiveness of our university on the international higher education market.