If you need to change what was originally approved by your TAI, don`t worry, as you can introduce them at a later date during the change period. If you would like to participate in the Erasmus+ programme, please visit this website and twitter (@erasmus_uc3m). Read the following information on how changes to the study contract can be made during the mobility stay. – in red matter which is not authorised (if any) – in yellow, minor changes in compartments which can be approved after error correction. (4) Once these changes are made, it sends a second version (V2) of the model to the TAI. This version is final except in exceptional cases. Changes to V2 are exceptional and must be duly justified. .