Hi Ichida,
In the mentioned report you would like to select this the exchange rate type and not only the "Display Currency" and "Display Currency - Conversion Date". This is not possible. Currently per default always the same type (I believe it is the middle rate) is taken.
The conversion takes place as per date provided in the selection.
When you have e.g. your local SOB with EUR, the expense report of 100 USD was posted in the SOB with 79,18 EUR as local currency (this value stays).
When you call the report today and display in EUR with yesterday's rate, you would see 78,89 EUR, because the rate has changed. Tomorrow or the day before you have a different rate.
There is no mechanism, that the transaction date is considered. And there is no way to change the type of the conversion with configuration.
Best regards
Marlene