Hi, when I connect to slack by auth, I have error when press “OAuth” button
Do I missed any step of auth?
redirect_uri did not match any configured URIs. Passed URI: https://n8n.mydomain.net/rest/oauth2-credential/callback
Hi @cmdntd987
You would want to put the redirection URL into your slack app and save it. After that you would be able to connect to the OAuth2 of Slack. Check the below image for a reference and put your redirection URL in it.
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I fixed it.
I need to add features and functionality (Incoming webhook of slack)
And then, rebuild my app on slack to have enough scopes.
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Hey sorry to revive this but I have a similar issue and I’d lke to know if you had to add some features in particular?
What’s wird is that the passed URL does not correspond to the one in the n8n desktop app:
https://selfish-vampirebat-58.hooks.n8n.cloud/rest/oauth2-credential/callback
(what did I do wrong?)
Welcome to the community @vinnysud!
Can you please refresh the browser. It should then display the correct URL (Background: I assume that you did restart n8n, or it crashed, the tunnel service thinks you are still connected, so could not reuse the original subdomain and so gave you a new one, you probably did not refresh the browser since that happened and so the original subdomain does still get used there)
Hey, Jan thanks for your help! indeed, the displayed URL in n8n was not corresponding: did a full reboot and seems to be connected properly 
Thanks again!
Glad to hear that it worked. Have fun!