Facebook Inc said on Tuesday it would
refund some advertisers after finding a bug that wrongly attributed video
carousel ad clicks as clicks to the advertisers' websites.
When users tried to expand and watch the
video carousel on the mobile web browser, the bug inadvertently directed the
click to the advertiser's website, leading to incorrect billing, the company
said in a blogpost on Tuesday. Read
more.
A video carousel ad format shows images
and links within a single ad unit and also has a button that directs users to
websites.
The company said it had fixed the bug,
which was not found on the desktop version or the mobile app.
The impact from a billing perspective was
0.04 percent of ad impressions, Facebook said.
Facebook in September apologized for an
error in the way it measured a key metric of video viewership that
significantly amplified users' viewing times on its platform.
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