A while ago I posted about the number of campaigns you could have per account on Yahoo and Google. While I’ve come to accept these figures, I have found a problem with Google that could cause you a problem. AdWords allows you to set a campaign to one of three states - on, paused and deleted. The issue here is that any account that’s not in a state of on doesn’t count towards the 25 campaign max. So if you have 25 campaigns that are on, the system prevents you from adding another one. If you have 24 campaigns that are on and one paused, well the system will allow you to add one more. However, should you decide to restart the paused account… you can’t as it’ll make you exceed your max, so you would then have to move one of the campaigns to another account, thereby losing the history. Since there are 3 states, why not have paused count towards the account count? The idea behind pausing an account rather than deleting it, is that you intend to restart it one day, the way the system is currently set up, you may be prevented from doing that.

Update: I’ve deleted the rest of this post as anon points out in the comments that there is indeed a delete function available from the campaign settings tab in Yahoo - Panama. I just hadn’t noticed it. Thanks anon, whoever you are.