The public service broadcaster engaged in a "major breach" of broadcasting rules by omitting to mention that the presenter of a documentary about Gaza was the son of a Hamas representative, as determined by UK media regulator Ofcom.
An investigation by Ofcom into the documentary titled Gaza: How to Survive a Warzone has found that the programme was "significantly deceptive".
The BBC's director general had already issued an apology, saying there had been "a major oversight in relation to factual correctness".
Ofcom has ordered the broadcaster to broadcast a evening announcement about its decisions.
"Given this constitutes a significant violation of our regulations, we are instructing the corporation to transmit a announcement of our conclusions against it on the BBC's second channel at nine o'clock in the evening, with a schedule to be confirmed," it said.
'Risk to Undermine Trust'
The regulator's announcement declared: "The inquiry we conducted concluded that the programme's omission to reveal that the narrator's father occupied a position in the Hamas-controlled authority was substantially inaccurate.
"This implied that the public did not have critical information which may have been highly relevant to their assessment of the narrator and the content he shared.
"Credibility is at the core of the connection between a television network and its viewers, particularly for a public service broadcaster such as the BBC.
"This failing had the risk to undermine the exceptionally strong amounts of trust that audiences would have invested in a documentary produced by the BBC about the Gaza conflict."
The documentary was removed from the online platform in the month of February after the boy's personal associations emerged, and in July an corporation's own inquiry determined it breached the corporation's journalistic standards on accuracy.
A representative for the broadcaster stated: "The authority's determination is in line with the conclusions of the internal assessment, that there was a major oversight in the film in relation to the broadcaster's journalistic policies on accuracy, which reflects regulation 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we agree with the regulator's ruling in its entirety. We will adhere to the sanction as soon as the date and wording are determined."
