The British broadcaster was found to have committed a "significant breach" of media regulations by failing to disclose that the voice of a documentary about Gaza 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 found that the documentary was "significantly deceptive".
The chief executive of the broadcaster had previously apologised, stating there had been "a significant failing in relation to accuracy".
The regulator has instructed the BBC to transmit a peak-time declaration about its decisions.
"Since this amounts to a serious breach of our code, we are ordering the BBC to air a statement of our findings against it on BBC Two at nine o'clock in the evening, with a timing to be determined," it said.
'Possibility to Undermine Credibility'
The watchdog's announcement said: "Our investigation concluded that the film's omission to reveal that the voice's male guardian held a post in the Hamas-controlled administration was substantially inaccurate.
"Consequently that the viewers did not have essential details which may have been extremely pertinent to their evaluation of the voice and the details he presented.
"Credibility is at the core of the bond between a media organization and its public, notably for a state-funded media outlet such as the BBC.
"This failing had the potential to erode the exceptionally strong degrees of credibility that viewers would have invested in a factual film from the broadcaster about the Israel-Gaza war."
The film was withdrawn from the online platform in the month of February after the boy's family links emerged, and in this past July an internal BBC review determined it infringed the corporation's journalistic standards on factual correctness.
A representative for the broadcaster said: "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 corporation's content standards on accuracy, which aligns with clause 2.2 of the regulator's media standards.
"We expressed regret for this and we accept Ofcom's decision in complete. We will follow the directive as soon as the timing and language are finalised."