Is it possible to activate the service to upload the hystorical rates from a date.
Example: now it is 5 March 2017. If I activate the service NAV uploads the currencies of yesterday. But if I would like to import the currencies since the 1 Juanuary 2017 how is it possible?
It would depend on the currency exchange rate service you are using. As far as I know, then neither ECB or Yahoo supports this. They always download the latest rates.
Maybe there are other services which allows this?
Since the rates are in a table I would explore importing them through Rapid Start.