The public service broadcaster committed a "major breach" of media regulations by not revealing that the narrator of a programme about Gaza was the offspring of a Hamas representative, as ruled by UK media regulator Ofcom.
An investigation by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has determined that the documentary was "significantly deceptive".
The chief executive of the broadcaster had previously apologised, stating there had been "a serious error in relation to factual correctness".
The authority has ordered the corporation to air a evening announcement about its decisions.
"Given this constitutes a significant violation of our rules, we are ordering the corporation to transmit a message of our determinations against it on BBC Two at 21:00, with a timing to be determined," it said.
'Potential to Damage Confidence'
The watchdog's report stated: "Our investigation concluded that the documentary's lack of disclosure that the narrator's parent held a position in the Hamas-administered government was materially misleading.
"Consequently that the audience did not have vital facts which may have been extremely pertinent to their evaluation of the narrator and the information he provided.
"Confidence is at the heart of the connection between a media organization and its audience, particularly for a public service broadcaster such as the British Broadcasting Corporation.
"This oversight had the risk to damage the exceptionally strong levels of trust that viewers would have placed in a documentary produced by the BBC about the Gaza conflict."
The film was removed from the BBC's streaming service in February after the presenter's personal associations came to light, and in the month of July an corporation's own inquiry found it infringed the broadcaster's editorial guidelines on truthfulness.
A BBC spokesperson stated: "The authority's determination is in accordance with the findings of the corporation's inquiry, that there was a major oversight in the film in relation to the corporation's content standards on truthfulness, which corresponds to clause 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we comply with the regulator's ruling in its entirety. We will adhere to the sanction as soon as the timing and wording are determined."
