The public service broadcaster was found to have committed a "significant breach" of broadcasting rules by omitting to mention that the narrator of a film about the Gaza situation was the son of a Hamas representative, as ruled by regulatory body Ofcom.
An investigation by Ofcom into the documentary titled Gaza: How to Survive a Warzone has concluded that the documentary was "substantially inaccurate".
The BBC's director general had earlier expressed regret, stating there had been "a significant failing in relation to accuracy".
Ofcom has instructed the broadcaster to transmit a evening statement about its findings.
"As this represents a significant violation of our code, we are directing the broadcaster to broadcast a announcement of our determinations against it on BBC Two at 9pm, with a timing to be determined," it said.
'Possibility to Undermine Trust'
The regulator's report declared: "Our investigation found that the programme's failure to disclose that the presenter's male guardian occupied a post in the Hamas-controlled administration was materially misleading.
"This implied that the public did not have vital facts which may have been very significant to their judgment of the presenter and the details he presented.
"Confidence is at the heart of the relationship between a broadcaster and its viewers, notably for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the possibility to damage the exceptionally strong levels of confidence that viewers would have put in a BBC factual programme about the Israel-Gaza war."
The programme was pulled from the online platform in the month of February after the boy's family links emerged, and in the month of July an corporation's own inquiry found it infringed the organization's journalistic standards on accuracy.
A representative for the broadcaster stated: "The authority's determination is in accordance with the results of the internal assessment, that there was a significant failing in the film in relation to the corporation's content standards on accuracy, which corresponds to Rule 2.2 of the regulator's media standards.
"We expressed regret for this and we agree with the authority's determination in complete. We will adhere to the sanction as soon as the schedule and wording are determined."
