The public service broadcaster was found to have committed a "major breach" of media regulations by not revealing that the narrator of a documentary about the Gaza conflict was the child of a Hamas representative, as ruled by regulatory body Ofcom.
An probe by the media regulator into Gaza: How to Survive a Warzone has determined that the documentary was "significantly deceptive".
The head of the BBC had already issued an apology, saying there had been "a major oversight in relation to accuracy".
The regulator has instructed the BBC to air a peak-time announcement about its findings.
"As this represents a major infringement of our code, we are ordering the broadcaster to transmit a message of our conclusions against it on the BBC's second channel at nine o'clock in the evening, with a schedule to be confirmed," the statement read.
'Risk to Erode Credibility'
The watchdog's announcement declared: "Our investigation concluded that the documentary's failure to disclose that the voice's father served in a role in the Hamas-controlled administration was substantially inaccurate.
"This implied that the viewers did not have vital facts which may have been very significant to their evaluation of the narrator and the information he shared.
"Credibility is at the core of the bond between a media organization and its audience, notably for a public service broadcaster such as the British Broadcasting Corporation.
"This oversight had the possibility to damage the very considerable levels of confidence that audiences would have placed in a factual film from the broadcaster about the Israel-Gaza war."
The programme was pulled from the online platform in the month of February after the boy's familial connections came to light, and in the month of July an internal BBC review concluded it infringed the corporation's content policies on truthfulness.
A BBC spokesperson commented: "The authority's determination is in agreement with the conclusions of the internal assessment, that there was a significant failing in the film in relation to the broadcaster's journalistic policies on factual correctness, which corresponds to Rule 2.2 of the regulator's media standards.
"We have apologised for this and we comply with the authority's determination in full. We will adhere to the directive as soon as the date and wording are determined."
