Can not get token to allow reading data from Things
I have created simple Things "person" and created Client ID and Client Secret for generate credential to allow me create and read data of Things.
I use API Inspector to generate credential by using scope data.read and data.create
I found that it can not generate credential when using scope data.read but it can generate for scope be data.create only, the following picture below. from this issue, i can only send data to Things but can not read back from them.
I try to generate credential from another tool API like Postman. I can get error message following picture below
Could you tell me why and how to solve this issue?