Either party may terminate this Service Agreement upon 15 days’ written notice to the other party hereto in the event that Customer has no outstanding SOWs in effect.</p> <p>4.2 Either party may terminate this Service Agreement immediately upon 15 days’ written notice to the other party in the event of any material breach of this Service Agreement (including without limitation, failure to pay any amounts when due hereunder) by such party where such material breach is not cured during such notice period.</p> <p>4.3