One of my colleagues today found out that if you edit a short description in Yahoo Sponsored Search, you have to include a period at the end. Usually you’re allowed 70 characters for the short description, but with the ending period, we’re all being cheated out of one character. If your ads are already 70 characters then don’t worry, they will continue to be active, but next time you edit them, they will be required to have an ending period.
One character doesn’t sound like a lot, but when you’re trying to get creative as well put across the right message and appeal to the right audience, every character counts. I have no idea why they decided to implement this, there’s a ton of other stuff that I would prefer them to do, like make the campaign import feature available for advertisers who are not at the Gold or Platinum spending levels.