Microsoft adCenter has allowed dynamic keyword insertion pretty much since they officially launched the program. But for a while now, the keyword insertion feature has not been working properly.
A WebmasterWorld thread asks if the feature has been fixed yet. The answer is no.
adCenterRep, the official Microsoft representative, confirmed the fix is not yet available:
I understand the importance of having the {keyword:default} working correctly and we are still investigating into this.
adCenterRep offers some "work arounds" for this issue:
- Not to use {param1} as a destination U if using {keyword:default} in ad titles
- Use static ad titles
- Use the same syntax for the dynamic insertions throughout the ad (for example, use {param1:default})
I guess don't use dynamic keyword insertion if you are using Microsoft adCenter.
Forum discussion at WebmasterWorld.