currency_conversion() function is showing error for cds view entity.

[#1]

I've created a cds view entity( define view entity <view_name>) with some elements and added currency_conversion() function to convert currency from 'USD' to 'EUR' it is showing error as-
ZD_TRAVEL_2-AUDCURR reference information missing or data type wrong, see long text ZD_TRAVEL_2 

-------- Same code is not showing error for cds view i.e., define view <view_name>

[thilakan_t]

The error says reference information missing. Try to give currency code reference like field booking_fee because audcurr also an amount field which requires currency reference.