Here comes the latest that Bing has created a new feature called Ad Preview in order to help advertisers see if their ad is appearing in Bing. Now, instead of searching on Bing.com for an ad, the advertisers will be able to access Ad Preview directly in adCenter to manage their advertising campaigns. Ad Preview will also help people avoid the unnecessary impressions and accidental clicks that they might come across during their search for ad.
If advertisers find their ads showing in Ad Preview, but not in the regular search. It means that they might have set demographic or geographic targets that they themselves do fulfill. However, Ad Preview does not offer a geographic or demographic preview right now, but the efforts in this regard are being made and soon the results will come.