The British broadcaster was found to have committed a "major breach" of industry standards by not revealing that the narrator of a programme about the Gaza situation was the child of a Hamas representative, as determined by UK media regulator Ofcom.
An inquiry by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the documentary was "materially misleading".
The BBC's director general had previously apologised, saying there had been "a serious error in relation to truthfulness".
Ofcom has directed the corporation to broadcast a peak-time declaration about its decisions.
"As this represents a serious breach of our regulations, we are instructing the corporation to broadcast a statement of our findings against it on the BBC's second channel at 21:00, with a timing to be finalised," the regulator stated.
'Risk to Damage Credibility'
The authority's report declared: "Our probe concluded that the film's failure to disclose that the voice's father held a role in the Hamas-controlled administration was significantly deceptive.
"Consequently that the audience did not have essential details which may have been extremely pertinent to their evaluation of the voice and the details he provided.
"Credibility is at the center of the relationship between a broadcaster and its public, especially for a national broadcasting corporation such as the public broadcaster.
"This failing had the risk to erode the exceptionally strong amounts of confidence that the public would have put in a documentary produced by the BBC about the conflict in Gaza."
The film was pulled from the BBC's streaming service in last February after the boy's family links emerged, and in the month of July an corporation's own inquiry concluded it infringed the broadcaster's editorial guidelines on truthfulness.
A BBC spokesperson stated: "The regulator's decision is in accordance with the results 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 Rule 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we comply with Ofcom's decision in full. We will adhere to the penalty as soon as the schedule and wording are determined."
