The public service broadcaster was found to have committed a "serious breach" of media regulations by failing to disclose that the voice of a film about the Gaza situation was the son of a Hamas representative, as ruled by UK media regulator Ofcom.
An inquiry by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "materially misleading".
The chief executive of the broadcaster had previously apologised, saying there had been "a serious error in relation to factual correctness".
The authority has ordered the broadcaster to broadcast a peak-time announcement about its conclusions.
"Given this constitutes a serious breach of our code, we are ordering the corporation to broadcast a message of our findings against it on the BBC's second channel at nine o'clock in the evening, with a timing to be determined," the statement read.
'Potential to Undermine Trust'
The authority's statement declared: "Our investigation concluded that the documentary's omission to reveal that the presenter's father served in a position in the Hamas-administered authority was significantly deceptive.
"It meant that the audience did not have essential details which may have been very significant to their evaluation of the voice and the details he provided.
"Trust is at the heart of the bond between a media organization and its viewers, especially for a state-funded media outlet such as the BBC.
"This oversight had the possibility to undermine the very considerable amounts of confidence that the public would have put in a BBC factual programme about the Gaza conflict."
The programme was withdrawn from the BBC's streaming service in last February after the boy's personal associations emerged, and in this past July an internal BBC review determined it infringed the broadcaster's editorial guidelines on truthfulness.
A representative for the broadcaster commented: "The Ofcom ruling is in line with the findings of the corporation's inquiry, that there was a significant failing in the documentary in relation to the corporation's content standards on factual correctness, which corresponds to Rule 2.2 of Ofcom's Broadcasting Code.
"We expressed regret for this and we accept the regulator's ruling in its entirety. We will adhere to the sanction as soon as the date and wording are determined."
