A group of advertisers has filed a lawsuit against him Facebook, arguing that the social networking giant knew the ad-metrics errors that measured the ad's video on its platform but did not inform them about them.
Through Facebook 80.000 internal Facebook pages acquired in court proceedings, they found that the company had discovered the erroneous estimates since the year 2015.
Nevertheless, Facebook is reported to have hidden the wrong measurements for more than a year before revealing 2016.
Advertisers have claimed that the company has been involved in unfair business conduct by showing inaccurate measurements that overestimated the time they watched their ads by users.
Referring to Facebook's internal documents as evidence, the lawsuit further argues that the wrong calculation was much larger than what was finally disclosed to advertisers.
According to the complaint, if Facebook reported bugs immediately, advertisers would have seen a sharp drop in their viewer statistics, which would have forced them to stop advertising their products on the social networking platform, resulting in significant loss of revenue for the company.
Meanwhile, Facebook said in answer:
"This lawsuit is of no value and we have tabled a proposal that rejects these claims. The statements that we have tried in any way to hide this issue from our associates are false. "
Facebook claims to have informed customers once the mistakes have been identified and advised the help center to explain the issue.
In a separate complaint filed by another company, Facebook faces allegations that it misled the estimated approach of advertisers to the public. But the company has also denied these claims.