thx for the reply.
I checked “hub.mode” and “hub.reason” is
“denied” and “unauthorized”.
I got Token from “OAuth Authorization Code Flow” and “OAuth Client Credentials Flow”.
and I requested webhooks.
but I received message 1) “Auth is required”. 2) Accepted, but hub.mode, hub.reason is “denied”, “unauthorized”
Which I get(use) Auth Token?
thx.