The British broadcaster was found to have committed a "significant breach" of broadcasting rules by omitting to mention that the presenter of a film about Gaza was the child of a Hamas official, as determined by UK media regulator Ofcom.
An inquiry by the media regulator into Gaza: How to Survive a Warzone has determined that the film was "significantly deceptive".
The chief executive of the broadcaster had already issued an apology, stating there had been "a major oversight in relation to accuracy".
Ofcom has ordered the broadcaster to transmit a peak-time announcement about its decisions.
"Since this amounts to a major infringement of our regulations, we are directing the BBC to air a announcement of our determinations against it on the BBC's second channel at 9pm, with a schedule to be finalised," the regulator stated.
'Risk to Erode Trust'
The authority's report said: "Our investigation determined that the documentary's lack of disclosure that the presenter's father held a position in the Hamas-controlled administration was materially misleading.
"Consequently that the audience did not have essential details which may have been highly relevant to their judgment of the narrator and the content he provided.
"Confidence is at the core of the relationship between a television network and its public, especially for a public service broadcaster such as the British Broadcasting Corporation.
"This oversight had the possibility to damage the exceptionally strong levels of trust that the public would have put in a BBC factual programme about the Gaza conflict."
The documentary was withdrawn from the BBC's streaming service in February after the presenter's personal associations emerged, and in the month of July an broadcaster's internal assessment found it violated the broadcaster's editorial guidelines on truthfulness.
A representative for the broadcaster stated: "The regulator's decision is in agreement with the results of the corporation's inquiry, that there was a significant failing in the programme in relation to the broadcaster's journalistic policies on accuracy, which aligns with regulation 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we agree with the regulator's ruling in full. We will comply with the directive as soon as the schedule and wording are finalised."
