It’s frustrating. You go to your local hardware store (or super-store) to buy some screws to fix that loose kitchen cabinet door, and you buy one of those handy packages of 10. You only need eight, so that should take care of it. Back at home you open the bag – and count out seven, yes, seven screws. You paid for 10, you got seven. You’re feeling…well…frustrated.
Now imagine that you’ve spent a goodly amount of advertising budget on your online search campaign. You want a good ROI, starting with your money’s worth of impressions, a decent click-through rate, and finally, some sales. And, well, the results so far aren’t quite what you expected. There are plenty of actions you can take, of course, and you need only do a bit of searching right here on the adCenter blog to get some great suggestions.
Well, here’s another one: check out your “share of voice.” In other words, look at your impression share.
Back in November 2011, Jennifer Jones blogged about, among other things, some of the exciting new features that would soon come to adCenter. One was “impression share reporting – see lost impressions.” And now it’s here!
It starts with impressions; you want as many as possible, because the more impressions your online ads get, the more likely you’ll convert “casual browsers” into customers. Now with adCenter you can create impression share reports. These give you statistics about the percentage of ad impressions you may be losing because of factors such as relevance, rank, or budget.
You may already have created and run account, campaign, or ad group performance reports. Impression share reports are customized versions of these performance reports that show impression share information. For some more details, see the adCenter Help topic, “About impression share reports”.
Here’s how to create an impression share report:
- First, go to the Reports tab and, If necessary, click Create new report.
- From the Report dropdown list, select Account performance, Campaign performance, or Ad group performance.
- Impression share reports work only for the Day view, so select that unit of time, and then select the date range you want for your report.
- Now for the customization part! Expand Change columns and layout and Add or remove columns in the Advanced settings (optional) section, select the impression share information you want in your report by picking the appropriate columns. Here’s what you’ll see:

Here’s some details on the impression share data:
- Impression share (%) is the estimated percentage of impressions you’re getting, out of the total available impressions in the market you were targeting.
- Impression share lost to budget (%) is the estimated percentage of impressions your ad did not receive due to issues with your daily or monthly budget.
- Impression share lost to rank (%) is the estimated percentage of impressions your ad did not receive due to issues with your ad ranking.
- Impression share lost to relevance (%) is the estimated percentage of impressions your ad did not receive due to issues with relevance scores.
- Impression share lost to other (%) is the percentage of impressions your ad missed on due to other reasons.
5. Finally, click Create new report.
Done! Within moments you’ll have a report that displays the percentage of ad impressions you may be losing. For example, the following table in an impression share report (from my own personal adCenter account and campaign) shows daily data over a 30-day date range. The table’s first column shows each day’s date. The table also includes several impression share data columns.

And with this kind of impression share information in hand, you can make intelligent decisions on how to improve your ads’ relevance, improve their ranking, or adjust your budget to capture those lost impressions.
In my case, for example, I should probably look into improving the relevance of the online ads I’m running.
As for those wood screws…I suggest you take them back and get an exchange. You deserve your money’s worth for them as much as for your online advertising budget.
Thanks for reading,
Joel Davis, Lead Technical Writer – adCenter User Assistance
Article source: http://community.microsoftadvertising.com/blogs/advertiser/archive/2012/02/02/getting-your-fair-share-or-finding-those-lost-impressions.aspx