Because of case-related issues, some RIC codes are being discarded by Reuters when trying to populate them into an instrument.
As an example, if we specify the symbol BASFn.DE by using only uppercase characters (BASFN.DE), an error is raised from API's side, preventing it from being populated on the instrument list (it's finally discarded) If we specify the identifier in its original form (a mix of uppercase and lowercase characters), it is correctly appended to the list.
From the attached screenshot, you'll have the chance of taking a look of the cases explained above (and the way the TRTH API resolves them):
Is there a way of asking the Rest API not to take into account the way every symbol is specified (thus, not taking into account the case of every character that it is compound of) ? Something like a "case-insensitive" working mode when populating symbols into the instrument list.