Hi everyone, how are you?
I need your help. I’ve been trying for two days to create the Google Sheets credential in n8n, but when it gets to the part where I connect to Google, a 401 error appears. I’ve already checked everything in the Google Console and everything seems fine there, and also in n8n, but I can’t finish the process because I’m unable to connect to Google. Can you help me?
Welcome to the community 
@Lilian_S_Barbosa
Did you follow this guide when setting up?
try to add the environment variable N8N_SKIP_AUTH_ON_OAUTH_CALLBACK=true. On my case, I am able to connect to Google Drive, Gmail, etc without it but having the same error when trying to connect to Google Sheets specifically until i added those environment variables