Slack authentication issue

Hi,

While integrating with slack i am not able to give redirect url as
http://localhost:5678/rest/oauth2-credential/callback

Please let me know how to proceed

Hey @Gauthami_Viswanathan!

Are you running n8n locally? If so, you would have to start n8n with the tunnel using the command use ngrok to get an https URL. You will also have to the Webhook Tunnel URL environment variable Environment Variables | Docs).