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List of Oder IDs:
Global Order IDs (set in Global settings) are imported into the list of each publisher and cannot be deleted on publisher level.
The exception here is Onvista. You have IDs that the other instances do not need and therefore you have stored additional IDs at publisher level.
Refresh timeout - time period before ad is eligible for refreshing
Refresh interval - ATF SDK checks for ads that are eligible for refreshing every interval