Google Ad Manager Reporting
These instructions should only be followed in cases where the Anonymised service account has not been granted API access to GAM. If access has been granted then no further action is required. See Configuration of Google Ad Manager for further details.
Required Fields
The report will need to include the following
Dimensions
Date
Key-values (overlap)
Ad unit
Order
Advertiser
Placement (overlap)
Metrics
Ad server targeted impressions
Programmatic responses served
Programmatic eligible ad requests
Ad server targeted clicks
Filter
Key-values contains Anonymised
Report set-up guidance
Log into Google Ad Manager.
Navigate to Reporting > Interactive reports.

Reporting > Interactive reports
Click on the Create my own report button.
Name the report Anonymised GAM Report.
Set the Date field to Yesterday.
Leave the fields Compare and Split as None and Totals only respectively.
Under Report currency be sure to your local (operating) currency.
Set the Timezone to (GMT) Greenwich Mean Time or your Network time zone (notify Anonymised of this option) whichever is available.
Under Dimensions, select the following:
Date
Key-values (overlap)
Ad unit
Order
Advertiser
Placement (overlap)
Under Metrics, select the following:
Ad server targeted impressions
Programmatic responses served
Programmatic eligible ad requests
Ad server targeted clicks
Within Add filter set:
Key-values contains Anonymised.
Your report settings should look similar to:

Example of the Anonymised GAM Report
Now to schedule the report:
Click on Schedule.
Under Frequency choose Daily.
Set the Time to 06:00.
Leave the Start date and the End date, they should default to today and a years time. You will need to extend the end date in due course.
Under Delivery notification choose Always email on the scheduled date.
Set Who will receive the report add the email address:
gam.reporting+{Network ID}@anonymised.io
Where the Network ID can be found in GAM - see: https://support.google.com/admanager/answer/7674889?hl=en.
An example of the email address would be: gam.reporting+12345678@anonymised.io.Under Attachment select Email with attachment.
Click on the Save button.