Global settings for Prebid are general settings for the Prebid module.
Currently Ad Server Currency cannot be changed from the ATF Manager level (changes needs to be made in code). EUR is the default value.
Analytics adapter URL is url to the monitoring system.
Server configuration:
Timeout - value for Prebid Server timeout
Endpoint URL - url to prebid server
Sync endpoint URL - url to cookie syncing endpoint
Bidder mediation:
Prebid - sending only winning bid to GAM
GAM - sending all bids from Prebid to GAM