The public service broadcaster was found to have committed a "serious breach" of broadcasting rules by failing to disclose that the voice of a programme about Gaza was the child of a Hamas administrator, according to UK media regulator Ofcom.
An inquiry by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the programme was "substantially inaccurate".
The chief executive of the broadcaster had earlier expressed regret, stating there had been "a major oversight in relation to truthfulness".
The regulator has directed the corporation to broadcast a evening announcement about its findings.
"Given this constitutes a major infringement of our rules, we are instructing the BBC to broadcast a statement of our determinations against it on BBC Two at nine o'clock in the evening, with a date to be finalised," the regulator stated.
'Risk to Undermine Confidence'
The authority's report stated: "The inquiry we conducted found that the programme's failure to disclose that the narrator's male guardian served in a post in the Hamas-run government was significantly deceptive.
"It meant that the public did not have vital facts which may have been very significant to their judgment of the voice and the content he presented.
"Credibility is at the center of the relationship between a media organization and its audience, especially for a public service broadcaster such as the BBC.
"This oversight had the risk to erode the very considerable levels of credibility that the public would have invested in a documentary produced by the BBC about the Gaza conflict."
The programme was pulled from the BBC's streaming service in February after the boy's familial connections came to light, and in this past July an internal BBC review determined it infringed the organization's journalistic standards on accuracy.
A BBC spokesperson stated: "The Ofcom ruling is in accordance with the results of the corporation's inquiry, that there was a significant failing in the film in relation to the corporation's content standards on factual correctness, which corresponds to regulation 2.2 of Ofcom's Broadcasting Code.
"We have apologised for this and we accept Ofcom's decision in its entirety. We will comply with the directive as soon as the date and wording are determined."