The public service broadcaster committed a "serious breach" of industry standards by not revealing that the voice of a film about the Gaza situation was the offspring of a Hamas official, as determined by UK media regulator Ofcom.
An investigation by the media regulator into the documentary titled Gaza: How to Survive a Warzone has determined that the film was "significantly deceptive".
The head of the BBC had earlier expressed regret, noting there had been "a serious error in relation to factual correctness".
The regulator has ordered the broadcaster to air a evening declaration about its conclusions.
"As this represents a major infringement of our rules, we are directing the broadcaster to air a statement of our conclusions against it on the BBC's second channel at nine o'clock in the evening, with a schedule to be finalised," the statement read.
'Possibility to Erode Credibility'
The watchdog's announcement declared: "Our investigation concluded that the programme's lack of disclosure that the presenter's parent served in a post in the Hamas-controlled government was materially misleading.
"This implied that the public did not have essential details which may have been very significant to their assessment of the narrator and the details he provided.
"Confidence is at the core of the connection between a television network and its viewers, notably for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the risk to undermine the exceptionally strong degrees of credibility that viewers would have invested in a factual film from the broadcaster about the Israel-Gaza war."
The documentary was pulled from the online platform in last February after the boy's family links emerged, and in this past July an internal BBC review determined it breached the broadcaster's journalistic standards on factual correctness.
A BBC spokesperson commented: "The authority's determination is in agreement with the findings of the corporation's inquiry, that there was a major oversight in the documentary in relation to the broadcaster's journalistic policies on accuracy, which aligns with Rule 2.2 of Ofcom's Broadcasting Code.
"We have apologised for this and we comply with the authority's determination in complete. We will comply with the sanction as soon as the date and wording are confirmed."
