1) No Conversion Tracking. How does yahoo justify users expenditure on their network without being able to track campaign effectiveness. This shows Yahoo is concerned about earning their revenue more than caring about users money.

2) No Advance Keyword/Ad Text editing. You cannot track down poor performing keywords & remove them. Similarly Text Ads.

3) No place for Image Ads. With content targeting options, having a Image targeting is a necessary feature.

4) No way to generate customized reporting tool. There is only a standard reports that can be generated.

5) If there are more than 1 campaign then there is no provision to find cumulative costs, clicks, bills etc..

6) There is a need to create an Ad every time your add a new keyword. This increases the time of the advertiser.