UNAT noted that, despite its Registry’s request for the Appellant to file an appeal brief, the Appellant failed to do so. UNAT noted that the Appellant was given the opportunity to improve his performance through the further extension of his appointment for an additional six months, but his performance had still not improved. UNAT held that there was no error in the conclusion of UNRWA DT that both the initial decision to extend the Appellant’s probationary period and the subsequent decision not to confirm his appointment were in compliance with his letter of appointment and UNRWA’s regulatory...