How do I troubleshoot integration connection issues?

Common fixes: 1) "State expired" - The authorization took too long, try again. 2) "Access denied" - You need admin permissions for your organization. 3) "Domain-wide delegation not configured" - Double-check the Client ID and OAuth scopes in Google Admin Console. 4) Token expired - Click "Reconnect" to refresh your connection. 5) For Microsoft 365, ensure you checked "Consent on behalf of your organization".