...
As part of the MVP rollout of this feature, SpringServe will be supporting:
United States dollar Dollar (symbol: $; code: ISO USD)
Euro (symbol: €; ISO code: EUR)
Pound Sterling (symbol: £; ISO code: GBP)
...
The AdServer refreshes the exchange rates for all supported native currencies from https://currencylayer.com/ each day at Midnight UTC.
These rates are then used once we have them available and until such time as we do the next refresh in 24 hours.
Also, note that the AdServer does not round off the exchange rates either higher or lower in any way.
To illustrate, the exchange rate from GBP to USD on 5/31/2021 was 1.4196
In the AdServer, we will use 1.4196 as the exchange rate and not round it off to 1.42
We use the actual exchange rate we get from the Exchange Rate Source.
To illustrate, all the auctions conducted from 6/1/2021 00:00:00 UTC through 6/1/2021 23:59:59 UTC will use the same exchange rates converted to USD throughout the day.
Once we refresh the exchange rates on 6/2/2021 00:00:00 UTC, the exchange rate used going forward will be the exchange rates that was acquired as of 6/2/2021 00:00:00 UTC.
...
Overspend is likely if you have a small budget and high volumes of traffic. You can overspend your budget if you receive a sudden surge of high volume traffic while we are conducting a budget check or before we have conducted our next budget check. Overspend or underspend is can be additionally likely due to the effect exchange rate fluctuations can have on revenue budgets, especially over time.