The British broadcaster was found to have committed a "significant breach" of industry standards by omitting to mention that the voice of a programme about the Gaza conflict was the child of a Hamas official, according to regulatory body Ofcom.
An inquiry by the media regulator into the programme Gaza: How to Survive a Warzone has determined that the programme was "materially misleading".
The chief executive of the broadcaster had previously apologised, noting there had been "a significant failing in relation to truthfulness".
The authority has ordered the corporation to transmit a prime-time announcement about its findings.
"Given this constitutes a major infringement of our rules, we are ordering the broadcaster to transmit a announcement of our determinations against it on BBC Two at 9pm, with a schedule to be determined," it said.
'Risk to Erode Confidence'
The authority's report declared: "Our probe found that the programme's omission to reveal that the voice's father held a post in the Hamas-run administration was materially misleading.
"Consequently that the public did not have critical information which may have been extremely pertinent to their judgment of the narrator and the information he provided.
"Credibility is at the center of the bond between a television network and its viewers, notably for a national broadcasting corporation such as the public broadcaster.
"This oversight had the risk to undermine the significantly high amounts of confidence that viewers would have placed in a BBC factual programme about the Israel-Gaza war."
The documentary was pulled from iPlayer in the month of February after the boy's family links emerged, and in this past July an corporation's own inquiry concluded it infringed the corporation's journalistic standards on truthfulness.
A corporation official commented: "The regulator's decision is in accordance 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 accuracy, which corresponds to regulation 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we agree with the regulator's ruling in full. We will follow the directive as soon as the date and wording are confirmed."
