If the documents proving participation in the mobility (such as a participation certificate) are not submitted, the mobility is considered invalid, and no grant is paid to the staff; any grant initially paid is recovered. In addition, deductions are made for activities that are carried out partially or inappropriately compared to the plan. Amounts that were initially planned to be paid but were not, and/or amounts reclaimed from the staff after payment, must be reported back to the Center.

Except for technical reasons, a deduction of 20% of the travel grant—calculated based on the total number of actual activity days and the distance band used for the grant calculation—is applied to staff who do not complete the participant survey.