The ones marked ❌ are ours for now. Asking for one is refused at the token endpoint
with
invalid_scope: a client-credentials request straight away, and an
authorization code when you exchange it. The consent screen does not check this
yet, so a seller can be shown one and approve it — but no token is ever issued
with it. Ask only for the ✅ ones.
Why each of them, and which could open up →
Two checks, not one
1
Does the token carry the scope?
Your token carries the union of what every business that connected you agreed
to. Without the scope at all, the answer is
403.2
Did this business grant it?
Checked again per request, against what that business ticked. A shop that
granted you reading answers
403 to a write even when another shop granted you
writing — the token alone cannot answer “may I do this here”.