I am trying to create a DM slack Thread. I am capable of send a DM message to the user but when I try to create a thread using the message ID from the previous step I get "channel_not_found". Any Ideas?
As far as I can tell from the docs it is required to use the x-www-form-urlencoded content-type value instead.
Have you tried something like the setup in the below screenshot?
Additionally, you have additional config for sending a DM. Have you double checked this part of the docs? Based on your error looks it seems your app doesn't have the chat:write permission.
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