Probably here
https://crm-onebox.com/en/support/price-platforms-and-marketplaces/11789-konvert... I gave not quite the right answer.
If you keep the goods in dollars in the box and unload them in dollars, then the prom itself will convert them into UAH at the exchange rate, and when you receive an order from the prom, the price will be recorded in UAH (or in dollars, depending on the currency of the box)
But in the context of the issue, it will not be possible to unload the price in UAH now.
As far as I understood the problem, then:
1) Box currency must be USD
2) Currency of goods - USD
3) Unloading goods to prom in UAH, probably at the rate of boxing
4) Receiving an order - it was not described here
5) Formation of a report in USD - this will provide point 1