How to aggregate SearchExactMatchImpressionShare Metric of two Ad Groups?

[Muhammad Javed]

I have two AdGroups in a Campaign. Sample data given below:

 

 Ad Group             Impressions        SearchExactMatchImpressionShare (EMIS)

 

Ad Group 1           1490                            31.78%

 

Ad Group 2               16                             50.00%

 

                         ------------                      -------------

 

Total: Ad Groups      1506                             33.33%

 

 

I am curious to know how actually Google AdWords aggregates SearchExactMatchImpressionShare metric (EMIS) for two different Ad Groups in one campaign.

 

I went through the Google definitions for "SearchExactMatchImpressionShare ", but could not produce expected result (EMIS = 33.33%).

 

I came up with the following formula after reading definition of SearchExactMatchImpressionShare on google AdWords forums

 

EMIS = (EMIS-R/EMIS-A)*100

 

R = Received (Impressions from Search Query Performance Report for those search queries which match type is exactly "Exact" or "Exact Close Variant").

 

A = Available (=(1490/31.78%))

 

The numbers that we receive by calculation does not match with the numbers being shown in AdWords UI(33.33%)

 

I am not sure if I am doing anything wrong in calculations. I would really appreciate a quick help on this.

[Sreelakshmi Sasidharan (AdWords API Team)]

Hi Muhammad, 

Since your question is about the calculation involved in deriving the SearchExactMatchImpressionShare, please post the question on the official product forum. The experts there are better equipped to answer your question. 

Thanks,
Sreelakshmi, AdWords API Team