We've added a new metric to your Ad Mediation report: Observed eCPM.
Observed eCPM represents a third-party ad network's estimated average eCPM calculated using historical revenue data.
Observed eCPM will only be shown for ad networks that have ad network optimisation (ANO) enabled. The value in the "Total" row of the report table is an average of all the values in the Observed eCPM column.
You can add the Observed eCPM metric to your report by clicking Customise metrics and selecting Observed eCPM in the new Earnings section.