In the case of choosing to do mobility under the ARQUS Open Mobility Agreement (OMA) the selection process of students is different than the other Mobility Programmes. Therefore, it is mandatory to read the "Nota Informativa" issued by the Vice-Rector for Education and Academic Mobility on this matter: consult here.
Anyway, if for any reason or force majeure you have to come back, you will have to return part or all of your Erasmus+ Mobility Scholarship, and to resume your studies at the University of Minho. It should be noted that you will not have to return the full amount of the scholarship if you stay a minimum of 3 (three) months and get a positive academic achievement (in this case you must only return the amount corresponding to the period you did not stay there) or if the cancellation is due to force majeure not attributable to the student, a situation that will be evaluated by the National Erasmus+ Agency, directly, after the student has been exposed to the International Relations Office. Furthermore, it must be stressed that if the drop out is not fully justified; you cannot re-apply to any exchange programs with the University of Minho in the following academic years.