3.The Commission shall supervise the proper management of the expenditure referred to in paragraph 1. For that purpose, it shall conclude a financing agreement with UNODA. UNODA and SAS will be invited to reach an agreement on the reimbursement of costs incurred by SAS for its contribution to the implementation of this Decision. The agreement between the Commission and UNODA shall stipulate that UNODA and SAS are to ensure the visibility of the Union's contribution, appropriate to its size.