The public service broadcaster was found to have committed a "significant breach" of media regulations by failing to disclose that the presenter of a documentary about the Gaza situation was the son of a Hamas representative, as determined by UK media regulator Ofcom.
An probe by Ofcom into Gaza: How to Survive a Warzone has concluded that the film was "substantially inaccurate".
The chief executive of the broadcaster had already issued an apology, stating there had been "a significant failing in relation to accuracy".
The authority has ordered the corporation to broadcast a peak-time statement about its findings.
"Given this constitutes a serious breach of our rules, we are ordering the corporation to transmit a announcement of our findings against it on BBC Two at 21:00, with a date to be confirmed," the statement read.
'Possibility to Undermine Credibility'
The watchdog's announcement said: "Our probe concluded that the film's omission to reveal that the narrator's male guardian occupied a role in the Hamas-controlled government was significantly deceptive.
"It meant that the public did not have critical information which may have been extremely pertinent to their judgment of the presenter and the information he provided.
"Credibility is at the center of the connection between a media organization and its viewers, particularly for a national broadcasting corporation such as the BBC.
"This error had the risk to damage the significantly high levels of credibility that audiences would have put in a BBC factual programme about the conflict in Gaza."
The film was pulled from iPlayer in last February after the narrator's personal associations came to light, and in the month of July an corporation's own inquiry concluded it violated the corporation's editorial guidelines on accuracy.
A corporation official commented: "The regulator's decision is in agreement with the conclusions of Peter Johnston's review, that there was a significant failing in the film in relation to the corporation's content standards on accuracy, which corresponds to Rule 2.2 of the regulator's media standards.
"We issued an apology for this and we comply with the authority's determination in full. We will comply with the directive as soon as the timing and wording are determined."
