The public service broadcaster committed a "serious breach" of broadcasting rules by failing to disclose that the narrator of a programme about the Gaza situation was the offspring of a Hamas administrator, as determined by UK media regulator Ofcom.
An probe by Ofcom into Gaza: How to Survive a Warzone has determined that the programme was "substantially inaccurate".
The BBC's director general had already issued an apology, noting there had been "a major oversight in relation to accuracy".
The authority has instructed the broadcaster to air a peak-time announcement about its conclusions.
"As this represents a major infringement of our code, we are ordering the broadcaster to broadcast a announcement of our findings against it on BBC2 at nine o'clock in the evening, with a timing to be determined," the regulator stated.
'Potential to Damage Credibility'
The regulator's report said: "The inquiry we conducted determined that the programme's omission to reveal that the presenter's parent held a position in the Hamas-administered government was significantly deceptive.
"It meant that the public did not have critical information which may have been very significant to their evaluation of the voice and the information he provided.
"Credibility is at the heart of the connection between a broadcaster and its viewers, especially for a national broadcasting corporation such as the British Broadcasting Corporation.
"This oversight had the possibility to damage the very considerable levels of trust that the public would have put in a documentary produced by the BBC about the Israel-Gaza war."
The documentary was removed from the online platform in last February after the boy's family links were revealed, and in the month of July an broadcaster's internal assessment found it infringed the corporation's content policies on truthfulness.
A representative for the broadcaster commented: "The authority's determination is in accordance with the results of Peter Johnston's review, that there was a significant failing in the documentary in relation to the broadcaster's journalistic policies on factual correctness, which corresponds to clause 2.2 of the regulator's media standards.
"We have apologised for this and we agree with Ofcom's decision in complete. We will adhere to the penalty as soon as the timing and wording are confirmed."
