A United Nations spokesman said the issue with Khalaf was not the content of the report, but a result of her failure to follow the necessary procedure before the publication.
"Therefore, we call on UN Secretary-General António Guterres to do what is right, reinstate the ESCWA report and undertake serious and concrete measures to hold Israel accountable for its persistent violations of global law and human rights".
U.N. Under-Secretary General and ESCWA Executive Secretary Rima Khalaf said she was leaving after "powerful member states" had pressured the world body and its chief with "vicious attacks and threats".
She also called on UN Secretary General Antonio Guterres "to do what is right, reinstate the ESCWA report and undertake serious and concrete measures to hold Israel accountable for its persistent violations of worldwide law and human rights". "This is about the secretary-general having the authority to manage the organization in a way that is done effectively and can deliver on its goals".
On Saturday, Abbas said he would award the highest Palestinian medal to Khalaf for her courageous stand in support of the Palestinians.
Since Guterres became the United Nations chief on January 1, Dujarric said he has been "very clear in his advocacy for the rights of the Palestinian people" and "for a two-state solution and against any unilateral moves that would undermine that goal".
USA ambassador to the UN Nikki Haley speaks after her first Security Council meeting, February 16, 2017.
She accused the "powerful member states" of the United Nations of attacking "those who advocate the cause of their victims".
On the same day of the report's release, Khalaf said the "ignorance of the global community" in recent decades had "encouraged Israel to continue its abuses of worldwide law".
Israel and its staunch ally, the United States, immediately called for its removal.
"UN agencies must do a better job of eliminating false and biased work, and I applaud the Secretary-General's decision to distance his good office from it", Haley said.