Hi,
I would like to inform you that the conversionValue field in the
Google Ads API represents a numerical value without an inherent monetary unit.
You have specified the currencyCode as "USD" in your request, this information is used for reporting purposes. The actual conversionValue is treated as a dimensionless number. Please refer to the report
currency_constant to get more information on the billable unit for a currency.
I hope this helps! Feel free to get back to us in case of any further queries.