The public service broadcaster was found to have committed a "major breach" of broadcasting rules by omitting to mention that the presenter of a documentary about the Gaza situation was the child of a Hamas official, as determined by UK media regulator Ofcom.
An probe by Ofcom into the programme Gaza: How to Survive a Warzone has found that the documentary was "significantly deceptive".
The chief executive of the broadcaster had previously apologised, noting there had been "a major oversight in relation to factual correctness".
The authority has ordered the corporation to broadcast a prime-time statement about its findings.
"Given this constitutes a serious breach of our code, we are instructing the BBC to transmit a message of our findings against it on the BBC's second channel at 21:00, with a timing to be determined," the statement read.
'Possibility to Erode Confidence'
The authority's announcement stated: "Our probe determined that the documentary's omission to reveal that the presenter's father occupied a post in the Hamas-administered authority was materially misleading.
"Consequently that the public did not have critical information which may have been extremely pertinent to their judgment of the narrator and the content he shared.
"Credibility is at the heart of the relationship between a media organization and its audience, particularly for a public service broadcaster such as the public broadcaster.
"This error had the risk to damage the exceptionally strong amounts of confidence that audiences would have placed in a factual film from the broadcaster about the conflict in Gaza."
The programme was withdrawn from iPlayer in the month of February after the boy's familial connections were revealed, and in the month of July an broadcaster's internal assessment found it breached the organization's journalistic standards on truthfulness.
A BBC spokesperson said: "The Ofcom ruling is in accordance with the conclusions of Peter Johnston's review, that there was a serious error in the documentary in relation to the broadcaster's journalistic policies on accuracy, which reflects clause 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we accept the regulator's ruling in full. We will comply with the sanction as soon as the date and language are finalised."
