The public service broadcaster engaged in a "serious breach" of industry standards by failing to disclose that the voice of a programme about the Gaza conflict was the child of a Hamas representative, as determined by British broadcasting authority Ofcom.
An probe by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has determined that the film was "substantially inaccurate".
The chief executive of the broadcaster had already issued an apology, noting there had been "a significant failing in relation to factual correctness".
The authority has ordered the corporation to transmit a evening announcement about its findings.
"Given this constitutes a significant violation of our rules, we are ordering the broadcaster to broadcast a statement of our conclusions against it on BBC2 at 9pm, with a schedule to be determined," the regulator stated.
'Potential to Damage Confidence'
The regulator's statement said: "The inquiry we conducted determined that the programme's omission to reveal that the voice's father occupied a role in the Hamas-controlled authority was substantially inaccurate.
"Consequently that the public did not have vital facts which may have been extremely pertinent to their assessment of the voice and the details he shared.
"Credibility is at the heart of the relationship between a media organization and its public, especially for a public service broadcaster such as the public broadcaster.
"This error had the possibility to undermine the exceptionally strong amounts of credibility that the public would have put in a factual film from the broadcaster about the Israel-Gaza war."
The film was withdrawn from the online platform in February after the narrator's familial connections emerged, and in July an corporation's own inquiry concluded it violated the broadcaster's editorial guidelines on accuracy.
A representative for the broadcaster commented: "The Ofcom ruling is in agreement with the findings of the corporation's inquiry, that there was a major oversight in the documentary in relation to the BBC's Editorial Guidelines on factual correctness, which aligns with clause 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we comply with the regulator's ruling in full. We will follow the directive as soon as the timing and wording are determined."
