The public service broadcaster committed a "serious breach" of media regulations by omitting to mention that the voice of a film about Gaza was the son of a Hamas official, as ruled by UK media regulator Ofcom.
An inquiry by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has found that the documentary was "substantially inaccurate".
The head of the BBC had earlier expressed regret, stating there had been "a major oversight in relation to truthfulness".
The authority has instructed the BBC to transmit a prime-time declaration about its findings.
"As this represents a major infringement of our rules, we are instructing the BBC to air a message of our determinations against it on the BBC's second channel at nine o'clock in the evening, with a schedule to be confirmed," it said.
'Possibility to Erode Confidence'
The regulator's announcement declared: "The inquiry we conducted determined that the documentary's omission to reveal that the narrator's male guardian held a role in the Hamas-administered administration was substantially inaccurate.
"Consequently that the public did not have essential details which may have been very significant to their evaluation of the presenter and the details he presented.
"Trust is at the heart of the relationship between a broadcaster and its public, especially for a public service broadcaster such as the British Broadcasting Corporation.
"This error had the possibility to damage the significantly high amounts of trust that the public would have invested in a factual film from the broadcaster about the Gaza conflict."
The documentary was pulled from the online platform in the month of February after the boy's family links emerged, and in this past July an internal BBC review concluded it infringed the corporation's content policies on factual correctness.
A corporation official commented: "The regulator's decision is in accordance with the findings of the corporation's inquiry, that there was a significant failing in the film in relation to the broadcaster's journalistic policies on truthfulness, which corresponds to clause 2.2 of the regulator's media standards.
"We have apologised for this and we agree with Ofcom's decision in complete. We will comply with the directive as soon as the timing and language are confirmed."
