Last Friday, during a routine infrastructure update, we experienced a technical issue that significantly increased the minimum bids for some keywords. Because the maximum CPC for these keywords was not changed, a number of impacted keywords became inactive for search, resulting in fewer leads for some advertisers. This technical issue was completely unrelated to the Quality Score updates that we have planned for later this week. We sincerely apologize for any disruption that it may have caused to your traffic. Below, we've answered a number of questions that we've heard since Friday:
When was this issue resolved?
This issue was resolved by our engineers on Saturday morning (PST) for the vast majority of impacted keywords. The minimum bids for these keywords have since returned to normal.
Will you be issuing credits?
Once we have completed our analysis of the impact, we'll automatically issue credits to advertisers who overpaid due to this issue. As soon as these credits have been applied, we'll email the affected advertisers to let them know.
I paused some of my ad groups because the minimum bids increased and they are still unusually high. What should I do?
If you paused any of your ad groups on Friday due to this issue, we recommend that you unpause them, but do not raise your maximum CPC. Unpausing your ad group should allow the minimum bid to return to normal without taking any other action.
Will this happen again?
Our engineers have been working tirelessly to understand why this issue occurred and to ensure that the proper measures are in place so that this is not repeated in the future.
Does this issue reflect the upcoming Quality Score improvements?
No, this issue is not related to our upcoming Quality Score improvements, which remain scheduled for later this week.
We greatly apologize for this issue. Please let us know if you have additional questions that you'd like us to answer on the blog.
Tuesday, 20 February 2007
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