As the history of such blunder is so long I am picking one such incidence of such blunder. 

Coca- Cola’s new Coke

In the year 1985 cola wars were in their prime, and both Pepsi and Coke were fighting it out in promotion crusades. The Pepsi Challenge was demonstrating to individuals that they really favored the essence of Pepsi to Coke in a visually impaired trial, and that stressed the general population at Coca-Cola. Truth be told, it stressed them so much that they chose to change the item's 100-year-old recipe, propelling New Coke to the world in April of 1985.

In any case, the information wasn't right. Truly, individuals at first loved the Pepsi flavor to Coke in a taste test. Yet, by and large, more individuals favored the marginally less sweet Coke equation when drinking an entire can. Coke's choice to up the sweetness flopped wretchedly. A huge number of dollars has been spent on the reformulation, new bundling, and advertisement crusades. What's more, it was just for nothing. Truth be told, it discolored the organization's picture, with Pepsi getting a knock from the New Coke fiasco.

Only a couple of months after the fact, in July, Coca-Cola declared that it had committed a gigantic error, and old Coke was returning. A few people think it was a guile move to get individuals adoring Coke once more, however with the measure of cash squandered, and the stain on the organization's picture, that is unquestionably not the situation. 

'All the best'