Client is getting a non-permissioned error message on two codes AARQU00 and PGACT00 which he has delayed access to within Eikon and Excel (able to pull via RHistory)
Running this into Python: 
import
pandas as pd
import
eikon as ek
ek.set_app_key('')
def
eikon_prices(rics, start_date):
 
data = [ek.get_timeseries(r,
 
start_date = start_date,
 
fields='CLOSE',
 
interval='daily'
 
) for r in rics]
 
data = pd.concat(data, axis=1)
 
return data
data =
eikon_prices(['AARQU00','LCOc1','RBc1', 'HOc1'], '2019-01-01')
print(data.tail())