UNAT held that UNRWA DT did not err in law and/or fact resulting in a manifestly unreasonable decision when it found that UNRWA’s decision not to renew the Appellant’s fixed-term appointment at the end of the probationary period was a lawful exercise of its discretion. UNAT held that UNRWA DT correctly found that a performance-related justification for the non-renewal was properly given in the form of his electronic Performance Evaluation Report. UNAT held that the irregularities in the assessment of the Appellant’s performance were not sufficiently substantial or consequential so as to rebut...