From the DSS UI, it is possible to extract the constituent RICs for a ChainRic by going to Datascope Select -> Search -> Chains
What is the equivalent way of doing the same via the REST API? I found the method GET /Search/HistoricalChainResolution - but when I try this, I get an error response with a message: The user does not have permission to perform the requested operation.
According to the error response, it is possible that you do not have permission for HistoricalChainResolution operation. Please contact Thomson Reuters Account team who should be able to assist you to obtain the permission.