Authorization doesn't take effect when I use OAuth2.0 to call API

Hi Experts,

II’m trying to test Acumatica’s OAuth Authorization flow using Postman. I already created a Client in the Connected Applications screen, and set the flow to Authorization Code. Also I got the access token after I called the authorize api.

I can call the OData service successfully as below.

But when I call the web service to get sales orders with the access token, I always get a message “You are not logged in.” Here is the screenshot.

Do we still need to call LogIn api again when we call the web service with access token?

Thanks in advance!