Hello, I've run my first CPM compain and got interesting problem. I actually got "out of daily budget" by 20-25% (I set $50 daily limit and it spent $70). I expected it to autimatically stop showing my ads once I hit the daily limit... Is it normal situation?
If your daily budget is $50, your monthly budget will be $1500. They will stop your ads once your monthly cost reaches $1800(20% over). That's the answer I got from adwords when I had the same issue a few months ago. You can ask them again.
Thanks. I've actually found the answer in FAQ section. It looks like Adwords can spend up to 20% more then your daily limit at some days, but it works "towards" next day. But at the same time they say your total monthly limit should be 100% accurate. Fair enough...