I followed the guide here: https://mailcow.github.io/mailcow-dockerized-docs/third_party/third_party-nextcloud/#configure-nextcloud-to-use-mailcow-for-authentication
And trying to login with a new, non-existing nextcloud account via existing mailcow user, gives this error
Error
Unable to exchange code for API access token. HTTP error 404. Raw Provider API response: <html> <head><title>404 Not Found</title></head> <body> <center><h1>404 Not Found</h1></center> <hr><center>nginx</center> </body> </html> .
I haven’t been able to find the cause for this error. Does the nextcloud user have to exist first?