RV_CONDITION_COPY decimals for amount field

I am calling RV_CONDITION_COPY in one of our interfaces to create condition records.  This interface is being called by XI using ABAP Proxies using XML.

The amount field KBETR gets a value with 3 decimal places from source system but it gets rounded to 2 decimal places when I map this amount in import parameter KOMV-KBETR(obviously the data type is CURR with 2 decimals).

I am able to manually enter amounts with 3 decimal places directly in VK11 transaction.

For ex: I get am amount value of 98.278; the amount posted in SAP is 98.280

How do I deal with such situation.

You help is much appreciated.

Regards

Kasi