The public service broadcaster was found to have committed a "major breach" of industry standards by failing to disclose that the voice of a programme about the Gaza situation was the child of a Hamas administrator, according to regulatory body Ofcom.
An inquiry by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has determined that the film was "substantially inaccurate".
The chief executive of the broadcaster had earlier expressed regret, stating there had been "a major oversight in relation to accuracy".
The regulator has instructed the broadcaster to broadcast a evening statement about its findings.
"Since this amounts to a serious breach of our regulations, we are directing the BBC to broadcast a statement of our conclusions against it on the BBC's second channel at 9pm, with a schedule to be confirmed," the regulator stated.
'Risk to Erode Confidence'
The authority's report declared: "Our probe concluded that the documentary's failure to disclose that the voice's parent held a position in the Hamas-administered authority was materially misleading.
"It meant that the public did not have essential details which may have been extremely pertinent to their assessment of the presenter and the information he shared.
"Confidence is at the core of the relationship between a television network and its viewers, especially for a state-funded media outlet such as the public broadcaster.
"This failing had the risk to undermine the significantly high levels of credibility that viewers would have placed in a factual film from the broadcaster about the Israel-Gaza war."
The film was removed from the BBC's streaming service in last February after the presenter's personal associations were revealed, and in July an broadcaster's internal assessment determined it violated the organization's content policies on factual correctness.
A corporation official stated: "The Ofcom ruling is in line with the findings of the internal assessment, that there was a serious error in the film in relation to the BBC's Editorial Guidelines on accuracy, which reflects regulation 2.2 of Ofcom's Broadcasting Code.
"We expressed regret for this and we agree with the authority's determination in full. We will comply with the directive as soon as the schedule and wording are confirmed."
