The public service broadcaster was found to have committed a "major breach" of industry standards by not revealing that the presenter of a film about the Gaza conflict was the son of a Hamas administrator, as ruled by regulatory body Ofcom.
An probe by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has concluded that the film was "substantially inaccurate".
The BBC's director general had previously apologised, saying there had been "a major oversight in relation to truthfulness".
The authority has directed the broadcaster to broadcast a peak-time announcement about its conclusions.
"As this represents a serious breach of our rules, we are ordering the corporation to transmit a statement of our conclusions against it on the BBC's second channel at 21:00, with a date to be confirmed," the statement read.
'Possibility to Damage Credibility'
The watchdog's report stated: "Our probe determined that the programme's omission to reveal that the narrator's parent served in a position in the Hamas-run government was materially misleading.
"Consequently that the audience did not have essential details which may have been highly relevant to their evaluation of the narrator and the content he presented.
"Trust is at the heart of the bond between a television network and its public, particularly for a state-funded media outlet such as the BBC.
"This error had the potential to erode the significantly high amounts of trust that the public would have placed in a BBC factual programme about the conflict in Gaza."
The programme was pulled from the online platform in last February after the boy's personal associations emerged, and in the month of July an corporation's own inquiry concluded it breached the organization's editorial guidelines on accuracy.
A corporation official commented: "The regulator's decision is in agreement with the conclusions of the corporation's inquiry, that there was a major oversight in the documentary in relation to the broadcaster's journalistic policies on factual correctness, which aligns with clause 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we agree with the regulator's ruling in full. We will follow the directive as soon as the date and language are determined."
