[
    {
        "errorCode": "INVALID_FIELD",
        "message": "Invalid sObjectName specified in query string. Only KnowledgeArticleVersion is supported."
    }
]

Hi, 
There's a new method introduced in v38 to retrieve data category. (https://developer.salesforce.com/docs/atlas.en-us.api_rest.meta/api_rest/resources_knowledge_support_dcgroups.htm)

However, I keep getting the above error no matter what sObjectName I have provided to. Can anyone tell me what's wrong with that? 

Hi all, I'm working on handling article objects(FAQ__kav) with REST API. I want to grab the whole list of item in specific data category with hierarchies where the article object is already using. So far I couldn't find any related method in the REST API document. Do anyone knows how can I achieve that?