The public service broadcaster engaged in a "major breach" of broadcasting rules by not revealing that the narrator of a programme about the Gaza situation was the child of a Hamas official, as determined by regulatory body Ofcom.
An inquiry by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "substantially inaccurate".
The chief executive of the broadcaster had earlier expressed regret, stating there had been "a major oversight in relation to accuracy".
The authority has instructed the corporation to air a evening declaration about its decisions.
"Given this constitutes a major infringement of our code, we are instructing the broadcaster to broadcast a message of our conclusions against it on the BBC's second channel at 9pm, with a schedule to be determined," the statement read.
'Potential to Damage Confidence'
The watchdog's report stated: "The inquiry we conducted found that the film's omission to reveal that the narrator's parent held a role in the Hamas-run administration was significantly deceptive.
"It meant that the viewers did not have vital facts which may have been very significant to their judgment of the voice and the information he presented.
"Trust is at the core of the bond between a media organization and its viewers, notably for a national broadcasting corporation such as the BBC.
"This error had the possibility to damage the significantly high degrees of trust that the public would have put in a BBC factual programme about the Israel-Gaza war."
The film was withdrawn from iPlayer in last February after the narrator's family links came to light, and in this past July an corporation's own inquiry concluded it breached the corporation's editorial guidelines on truthfulness.
A corporation official said: "The Ofcom ruling is in accordance with the conclusions of the internal assessment, that there was a significant failing in the film in relation to the broadcaster's journalistic policies on factual correctness, which aligns with clause 2.2 of the regulator's media standards.
"We have apologised for this and we comply with the authority's determination in full. We will comply with the directive as soon as the schedule and language are determined."
