To ensure Permutive is appending 100% impressions in DFP we need to check the impressions being recognised by Permutive compared to total impressions.
Create a DFP reaction for an 'Everyone' segment in Permutive
You need to create an 'Everyone' segment using the segment builder in the Permutive dashboard. Set the Behaviour to 'Pageview was performed' and click the slider in Reaction syncs section to create a DoubleClick reaction. Below is an example of how the segment should appear.
Verify the reaction was created by checking in the Reactions tab. The name will appear as the '[segment code] → DoubleClick'.
Run DFP reports of total impressions vs Permutive='Everyone'
DFP will need a day to populate the segment, so wait a day before completing the next steps.
You'll need to run a report in DFP to check the total impressions compared to the Permutive='Everyone' segment you have just created. From the DFP homepage select Reports → Queries → New Query. Set the report type to 'Historical' and the Dimensions to 'Ad unit' and 'Key-values'. Ad unit needs to be set to 'Top level'. In the Filters section, select 'Key-values contains permutive=segment code'. Tick the 'Total impressions' box in the Metrics section and Run the report.
Record the results given for the 'Everyone' segment.
Now you'll need to run the total number of impressions DFP is appending. Select the 'Edit' option at the top of the report. Remove the 'Key values' Filter and Dimension sections, and re-Run the report.
Record the new results and work out the percentage difference between these and those from the 'Everyone' segment.
To optimise the results (if the percentages are significantly low), please contact firstname.lastname@example.org for further help on this topic.