I am using an R API call to extract historic returns from the datastream API from a dataframe of Sedols and Dates.
The API call works perfectly for ISIN's however for this dataset I only have Sedols.
I have noticed that the call only works on numeric Sedols and not alpha numeric Sedols.
I don't have a country code so am unable to append that to the Sedol as I've read on another thread.
Is there a simple way to achieve this ?