The public service broadcaster was found to have committed a "serious breach" of media regulations by not revealing that the presenter of a documentary about Gaza was the offspring of a Hamas administrator, as ruled by regulatory body Ofcom.
An investigation by Ofcom into Gaza: How to Survive a Warzone has determined that the documentary was "significantly deceptive".
The head of the BBC had already issued an apology, stating there had been "a major oversight in relation to truthfulness".
The authority has ordered the corporation to air a evening declaration about its decisions.
"Given this constitutes a major infringement of our code, we are directing the broadcaster to transmit a statement of our conclusions against it on the BBC's second channel at 21:00, with a timing to be determined," it said.
'Potential to Erode Trust'
The watchdog's announcement declared: "The inquiry we conducted concluded that the documentary's omission to reveal that the narrator's father held a role in the Hamas-run administration was substantially inaccurate.
"It meant that the viewers did not have vital facts which may have been very significant to their assessment of the presenter and the information he provided.
"Confidence is at the heart of the relationship between a television network and its public, especially for a public service broadcaster such as the BBC.
"This failing had the possibility to erode the very considerable degrees of credibility that the public would have put in a documentary produced by the BBC about the Israel-Gaza war."
The documentary was pulled from the online platform in the month of February after the presenter's family links emerged, and in the month of July an internal BBC review found it violated the organization's editorial guidelines on factual correctness.
A BBC spokesperson stated: "The authority's determination is in line with the conclusions of Peter Johnston's review, that there was a significant failing in the documentary in relation to the BBC's Editorial Guidelines on truthfulness, which corresponds to regulation 2.2 of the regulator's media standards.
"We expressed regret for this and we accept Ofcom's decision in complete. We will follow the directive as soon as the timing and wording are confirmed."
