Dear Mojana,
Your request is interesting and valuable.
Currently we do not support such an API, but we have forwarded your request to the developers and, almost certainly, we will improve the management of error messages.
But in the most of the cases the APIs that return a bool return a false if the license is not the appropriate level for the implementation of the API, (i.e. you are trying to use a feature that is not enabled for the currently used license type)
The APIs on which this improvement may have effect, are those that access the file system, but partly already return more detailed information.
Till we do that, if you need support for certain cases, please do not hesitate to ask.