The public service broadcaster was found to have committed a "serious breach" of media regulations by failing to disclose that the presenter of a film about Gaza was the child of a Hamas representative, as determined by British broadcasting authority Ofcom.
An investigation by the media regulator into Gaza: How to Survive a Warzone has concluded that the film was "substantially inaccurate".
The head of the BBC had previously apologised, stating there had been "a major oversight in relation to accuracy".
The regulator has ordered the broadcaster to broadcast a evening declaration about its findings.
"Since this amounts to a major infringement of our regulations, we are instructing the corporation to air a message of our findings against it on BBC2 at 9pm, with a timing to be determined," it said.
'Risk to Undermine Trust'
The authority's report declared: "The inquiry we conducted found that the documentary's failure to disclose that the presenter's parent held a role in the Hamas-administered administration was substantially inaccurate.
"This implied that the audience did not have critical information which may have been very significant to their evaluation of the voice and the information he provided.
"Trust is at the center of the connection between a broadcaster and its viewers, particularly for a national broadcasting corporation such as the BBC.
"This oversight had the possibility to erode the exceptionally strong degrees of credibility that the public would have placed in a factual film from the broadcaster about the Israel-Gaza war."
The programme was pulled from the BBC's streaming service in the month of February after the boy's familial connections were revealed, and in July an broadcaster's internal assessment concluded it breached the broadcaster's editorial guidelines on truthfulness.
A representative for the broadcaster stated: "The regulator's decision is in line with the findings of the internal assessment, that there was a major oversight in the film in relation to the BBC's Editorial Guidelines on factual correctness, which corresponds to regulation 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we agree with the regulator's ruling in its entirety. We will follow the directive as soon as the date and language are finalised."
