The public service broadcaster was found to have committed a "significant breach" of media regulations by omitting to mention that the narrator of a film about the Gaza conflict was the son of a Hamas representative, as ruled by UK media regulator Ofcom.
An probe by the media regulator into Gaza: How to Survive a Warzone has determined that the programme was "significantly deceptive".
The BBC's director general had earlier expressed regret, stating there had been "a serious error in relation to truthfulness".
The authority has instructed the broadcaster to transmit a evening statement about its findings.
"Since this amounts to a major infringement of our rules, we are ordering the broadcaster to broadcast a statement of our conclusions against it on the BBC's second channel at nine o'clock in the evening, with a date to be confirmed," the statement read.
'Possibility to Undermine Credibility'
The regulator's report declared: "Our investigation determined that the documentary's failure to disclose that the presenter's male guardian held a post in the Hamas-run government was substantially inaccurate.
"This implied that the audience did not have essential details which may have been highly relevant to their evaluation of the voice and the details he provided.
"Confidence is at the center of the relationship between a broadcaster and its viewers, especially for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the risk to undermine the significantly high amounts of trust that the public would have invested in a documentary produced by the BBC about the Israel-Gaza war."
The documentary was removed from the BBC's streaming service in last February after the presenter's familial connections were revealed, and in the month of July an broadcaster's internal assessment concluded it infringed the organization's editorial guidelines on factual correctness.
A corporation official stated: "The Ofcom ruling is in line with the conclusions of Peter Johnston's review, that there was a major oversight in the film in relation to the corporation's content standards on factual correctness, which reflects clause 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we accept the authority's determination in its entirety. We will adhere to the directive as soon as the timing and wording are determined."
