The British broadcaster was found to have committed a "significant breach" of industry standards by omitting to mention that the narrator of a film about the Gaza conflict was the son of a Hamas official, as ruled by regulatory body Ofcom.
An probe by the media regulator into the documentary titled Gaza: How to Survive a Warzone has determined that the documentary was "materially misleading".
The chief executive of the broadcaster had previously apologised, saying there had been "a significant failing in relation to accuracy".
The regulator has ordered the corporation to broadcast a evening announcement about its conclusions.
"Given this constitutes a major infringement of our rules, we are ordering the broadcaster to transmit a statement of our findings against it on BBC2 at nine o'clock in the evening, with a timing to be finalised," the statement read.
'Possibility to Erode Confidence'
The authority's report declared: "Our probe concluded that the documentary's omission to reveal that the narrator's male guardian held a post in the Hamas-controlled authority was substantially inaccurate.
"This implied that the public did not have essential details which may have been extremely pertinent to their evaluation of the narrator and the information he presented.
"Credibility is at the core of the bond between a media organization and its public, notably for a public service broadcaster such as the BBC.
"This error had the risk to damage the very considerable levels of credibility that the public would have put in a BBC factual programme about the Gaza conflict."
The film was withdrawn from the online platform in February after the boy's personal associations came to light, and in this past July an broadcaster's internal assessment found it infringed the broadcaster's content policies on truthfulness.
A representative for the broadcaster said: "The regulator's decision is in agreement with the findings of the corporation's inquiry, that there was a significant failing in the programme in relation to the BBC's Editorial Guidelines on accuracy, which corresponds to clause 2.2 of Ofcom's Broadcasting Code.
"We expressed regret for this and we accept the authority's determination in its entirety. We will adhere to the sanction as soon as the timing and wording are determined."
