I try to get companies associated with account by calling the ACC Admin API endpoint: https://developer.api.autodesk.com/hq/v1/regions/eu/accounts/:account_id/companies

Problem is the response I get is {code: 1003, message: “Only support 2 legged access token.”}.
Is this true? As I read in the documentation and it should be able to use both 2 and 3-legged authorization.

I try to get companies associated with account by calling the ACC Admin API endpoint: https://developer.api.autodesk.com/hq/v1/regions/eu/accounts/:account_id/companies

I expect to be able to use 3-legged authentication.