Customer testing will be conducted toward the end of the implementation process for the system and will be conducted in accordance with Appendix B. The purpose of the Customer testing shall be determine if the System substantially conforms to Description of the System contained in Appendix A. Acceptance shall take place upon the earlier to occur of (i) the completion of the Customer testing, or (ii) sixty (60) days following Sabre’s delivery of the System to Customer unless Customer unless Customer has previously notified Sabre of any material non-conformities of the System (Acceptance)