Google adwords daily budget

Question 2.

[spud01]

I noticed that the campaign budget is not been adhered too and it goes beyond what I budget for that day?

As a good test I left the budget fixed for 2 days and both days I have seen the budget limit burts.

What is the Daily Buddget for then?

[engine]

You should receive a credit for the overspill. Watch that closely in the next billing period.

[spud01]

Really?

That's good...but I wont hold my breath.

Thx

[cazgh]

I heard that the daily budget could regularly run over - but that in a month they (Google) should run under your specified budget - or you'll get the over delivery credit.
My advice is talk to them about it if your not happy.

[Tropical Island]

I haven't read it recently however I believe they say that on any one day it can run over up to 10 or 20% however that over the month the average would not be over the daily budget.

In other words you may get a higher amount Monday to Friday however the lower amounts on Sunday and Saturday would balance it out.

[eWhisper]

It is a monthly average, so if your campaign is paused for a few days, G might allow a lot of clicks the first few days its back up to balance out the days your account wasn't active. If you want to run your account only on weekends/weekdays, you need to do a bit of math to figure out what your daily average needs to be to not go overbudget.

[AdWordsAdvisor]

spud01, it is normal behavior for ads to run over budget on a given day - up to 20%, as mentioned elsewhere. Our system will then underdeliver on the following day to balance this overdelivery.

The reason that we might overdeliver has to do with volume and speed. Consider:

* 150,000 advertisers, each with (potentially) 25 daily budgets, up to 2500 Ad Groups, up to 50,000 keywords, with varying CPC and CTR, etc.

* That each of these factors can change moment to moment. (Many advertiser change their daily budget multiple times per day for example.)

* That searches happen at the rate of several thousand per second (Did I do my math right? Anyway, figure 200 million per day.)

With all that activity it is, uhhm, difficult to bring each campaign to a screeching halt precisely when it reaches its daily budget. ;)

You may have faith in this: the AdWords program will not bill you for more clicks that your budget allows, over time. If we have delivered more clicks than your budget allowed for, in the time frame for which you are billed, you will be automatically credited for those extra clicks (overdelivery credit).

And since these clicks have already been delivered, that is free advertising. Which ain't a bad thing.

[spud01]

AdWordsAdvisor

Thank you, I'm begining to graps the complexity involved.

[Reflection]

Is the monthly average calculated for each individual campaign or is it calculated on the total daily budget of all your campaigns?

[Michael Coley]

I have received at least a couple small overdelivery credits on days when overdelivery exceeded 20% of my budget. Certainly a nice surprise!

Michael

[eWhisper]

Based on the numbers I've seen, I'm pretty sure it's each individual campaign. Over the course of a month, all my campaigns even out for daily budget, even though one campaign is 50% of my budget and could easily absorb the small ones, yet it doesn't.

[AdWordsAdvisor]

Great question, Reflection. I am 99.99% certain that eWhisper is correct - it is per campaign.

I'll check on that remaining .01% uncertainty, and post again tomorrow. ;)

[AdWordsAdvisor]

OK, now I am 100% certain. It is per campaign. ;)

[eWhisper]

One thing I have noticed. If you set your campaign for $100/day, and for some reason you pause or your campaign runs out of funds or a few days, AdWords will up your average until you're monthly spend is back to averaging $100/day for the month.

So if you only have an account (daily budget $100/day) for 15 days out of 30, adwords will still try to make your account average $3000 for the month, and not $1500.