admin works for sandbox-iosxe-latest-1.cisco.com. However, developer and admin do not work for sandbox-iosxe-recomm-1.cisco.com. Double checked the sandbox docs and they both still say to use developer. Can someone at Cisco fix the recommended one an...

I'm having this exact same issue. Is there any better documentation out there. Most of what I found appears to be outdated. I authorized my Developer account for APIs and still get 403's every time using a valid access token.