When I ask for CF_CURR via TICKER and ISIN, I get USD for ticker but NaN for ISIN.
identifiers = ['US03076C1062', 'AMP'] data, error = ek.get_data(identifiers, fields=['CF_CURR'])
0 US03076C1062 None
1 AMP USD
Is this desired behaviour that I have to first convert all identifiers to RIC (even other data can be obtained via ISIN)?