During the stay
It is necessary to have a digital certificate in order to be able to sign the documents of the stay.
Once you arrive at the host university, you will have to follow the guidelines and deadlines indicated there.
These are the two procedures to be taken into account with the UAB:
Agreement of studies
If there is any change in the original study agreement, the student has 5 weeks after having started the classes at the destination to make modifications.
The modifications are made as if they were a new study agreement, you can consult the informative dossier for more detail of the process.