I created a campaign with some WAP ads for a pay per call campaign and AdWords is not running...The mouseover dialog on the ad says "We are not able to provide diagnosis information for ad groups that contain only WAP creatives.". If I run the ad diagnostics tool, I get an error like "This ad must be in a different format to be shown". Does anybody have any idea why it won't let me run? The ad itself is approved, the keywords are showing 'Eligible', the campaign/adgroup/ads/keywords are unpaused, etc. I've checked all of the obvious stuff that might be wrong.