The British broadcaster was found to have committed a "serious breach" of broadcasting rules by not revealing that the voice of a programme about the Gaza situation was the child of a Hamas representative, according to regulatory body Ofcom.
An probe by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the film was "materially misleading".
The BBC's director general had previously apologised, saying there had been "a major oversight in relation to factual correctness".
Ofcom has ordered the corporation to air a peak-time declaration about its findings.
"As this represents a major infringement of our code, we are instructing the corporation to broadcast a message of our conclusions against it on BBC2 at 9pm, with a timing to be finalised," the statement read.
'Potential to Damage Confidence'
The regulator's report declared: "Our probe found that the film's failure to disclose that the voice's parent occupied a role in the Hamas-controlled administration was materially misleading.
"This implied that the audience did not have critical information which may have been very significant to their assessment of the presenter and the content he provided.
"Trust is at the center of the bond between a broadcaster and its public, especially for a national broadcasting corporation such as the public broadcaster.
"This failing had the risk to undermine the very considerable amounts of credibility that audiences would have put in a documentary produced by the BBC about the Israel-Gaza war."
The film was pulled from the BBC's streaming service in February after the boy's personal associations were revealed, and in the month of July an corporation's own inquiry found it violated the organization's journalistic standards on factual correctness.
A representative for the broadcaster stated: "The authority's determination is in line with the findings of the internal assessment, that there was a major oversight in the documentary in relation to the broadcaster's journalistic policies on truthfulness, which aligns with regulation 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we accept the authority's determination in full. We will adhere to the directive as soon as the timing and wording are determined."
