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There is no well-supported, comparable “top 10” ranking of marketing disasters: the available accounts do not measure financial or reputational damage on the same basis. But four documented cases show how a product change, an ad, or a packaging promotion can collide with audience expectations—and what the companies did next.
Why these four cases stand out
These examples are not ranked. They were selected because published accounts describe what the brands were trying to do, the criticism or reaction that followed, and, in several cases, the company’s response. The evidence does not establish a common measure of harm, so a numbered “worst” list would imply a comparison the facts cannot support.
New Coke: changing a familiar product without measuring attachment
On April 23, 1985, The Coca-Cola Company announced a reformulation of Coca-Cola. The company said it wanted to reinvigorate its flagship brand and the cola category amid competition from Pepsi. Its retrospective says nearly 200,000 consumers took part in taste tests that favored the new formula, but those tests did not reveal consumers’ emotional attachment to the original. The Coca-Cola Company’s account is the source for those figures and its explanation; they are company-published historical figures, not an independent audit. INSEAD’s teaching-case summary also describes the change as a response to the Pepsi Challenge that provoked consumer backlash.
The company says its consumer hotline received 1,500 calls a day in June 1985, up from 400 a day before the change. On July 11, 1985—79 days after the reformulation announcement, by the company’s count—it brought back the original formula as Coca-Cola Classic. In a 1995 employee-event speech quoted in its retrospective, then-chairman and CEO Roberto Goizueta said: “We set out to change the dynamics of sugar colas in the United States, and we did exactly that — albeit not in the way we had planned.”
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The lesson is narrower than “never change a classic”: a taste preference test can answer which formula people prefer in a tasting, but it may not reveal the cultural or emotional value attached to the existing product. Coca-Cola itself identified that gap in its retrospective.
Pepsi’s Kendall Jenner ad: borrowing protest imagery without a clear cause
In 2017, Pepsi released an ad showing Kendall Jenner joining a protest and handing a Pepsi to a police officer. Pepsi said it wanted to project unity, peace, and understanding. Critics objected that the ad used protest imagery without naming a concrete cause, as reported by Marketing Dive. That criticism was reported, not a finding that every viewer responded the same way.
On April 5, 2017, Pepsi apologized and said it would withdraw the content and stop further rollout. Its statement read: “Clearly we missed the mark, and we apologize. We did not intend to make light of any serious issue. We are removing the content and halting any further rollout.” A contemporaneous Bentley University interview with marketing professor Henri Weijo noted that Pepsi pulled the ad and apologized promptly.
The practical risk in socially charged creative is that broad feel-good language can come across as trivializing when the ad borrows recognizable symbols of protest but does not engage with a specific issue. Marketing Dive’s 2017 analysis relayed expert advice to research the audience and test concepts before launch; such steps can inform a campaign, but they cannot guarantee a backlash-free response.
Rank #3
Dove’s body-wash bottles: a representation idea that drew body-image criticism
Dove’s 2017 limited-edition UK promotion offered body-wash bottles in varied shapes intended to represent women’s bodies. Marketing Dive reported criticism that the packaging could reinforce the body judgments Dove’s “Real Beauty” campaign sought to challenge. That is reported criticism, not an official finding or proof of a uniform consumer reaction. The case illustrates a creative risk: an inclusive intention does not determine how a physical product comparison will be interpreted.
McDonald’s UK grief-focused ad: when emotional storytelling feels exploitative
A 2017 McDonald’s UK television ad followed a grieving son and his deceased father. After social-media criticism that the spot used bereavement to sell a brand, the company pulled it, according to Marketing Dive, which relayed a McDonald’s statement via The Guardian. The spokesperson was quoted as saying: “We are particularly sorry that the advert may have disappointed those people who are most important to us: our customers.”
Emotional storytelling can make a brand memorable, but using grief as a route to a product message can feel intrusive to viewers. The reported response shows why a campaign’s subject and its commercial purpose need to be evaluated together.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What marketers can take from these failures
- Test the right thing. Preference testing may reveal which option people like, but it may not capture attachment, symbolism, or how a change affects a familiar brand.
- Make the cause legible. When creative uses protest or other charged imagery, a general message of unity may not be enough to explain why the brand belongs in the conversation.
- Check execution against brand promises. Packaging or storytelling can undermine a stated value if audiences read the execution as reinforcing the problem the brand says it wants to address.
- Respond plainly when criticism lands. Pepsi publicly apologized and withdrew its ad; McDonald’s pulled its UK spot. A response can address the immediate campaign, though it cannot make all viewers agree about the original intent.
These cases differ in product, audience, criticism, and response. They do not establish a reliable financial-loss ranking or prove that one type of mistake is always more damaging than another.
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