1. Pls Go to Google Ad Manager > Admin > Global Settings . And then Open API Access.

2. Press Add A Service Account User Button From Google Ad Manager > Admin > Global Settings , Pls add this email : admanager-access@totemic-splicer-458211-n4.iam.gserviceaccount.com  as new user. Pls set role Trafficlicker Role or Ad manager Only Role.

3.If your google ad manager are working already with web or app traffic, you will get reporting data after 1 or 2 hours.

Thank You , If you have any questions, open tickets.