The British broadcaster committed a "serious breach" of industry standards by not revealing that the voice of a film about Gaza was the offspring of a Hamas administrator, as ruled by regulatory body Ofcom.
An probe by the broadcasting watchdog into Gaza: How to Survive a Warzone has concluded that the programme was "substantially inaccurate".
The BBC's director general had earlier expressed regret, stating there had been "a serious error in relation to truthfulness".
The authority has directed the broadcaster to broadcast a prime-time statement about its conclusions.
"As this represents a significant violation of our rules, we are ordering the broadcaster to broadcast a message of our conclusions against it on BBC Two at 9pm, with a timing to be finalised," the regulator stated.
'Risk to Erode Credibility'
The regulator's announcement declared: "The inquiry we conducted concluded that the documentary's lack of disclosure that the voice's parent served in a position in the Hamas-run government was materially misleading.
"It meant that the public did not have critical information which may have been extremely pertinent to their assessment of the narrator and the details he shared.
"Trust is at the core of the connection between a media organization and its public, particularly for a state-funded media outlet such as the public broadcaster.
"This failing had the risk to erode the significantly high degrees of confidence that viewers would have placed in a BBC factual programme about the conflict in Gaza."
The programme was pulled from iPlayer in the month of February after the boy's personal associations came to light, and in this past July an broadcaster's internal assessment concluded it violated the organization's editorial guidelines on factual correctness.
A representative for the broadcaster said: "The authority's determination is in accordance with the conclusions of the internal assessment, that there was a significant failing in the film in relation to the corporation's content standards on factual correctness, which corresponds to clause 2.2 of the regulator's media standards.
"We issued an apology for this and we accept the regulator's ruling in complete. We will follow the directive as soon as the date and language are determined."
