Network Issues: Ensure connectivity to Databricks, GitHub, and PyPI. Use VPN or proxy if workspace is isolated.
Proxy/SSL Errors: Set certificate-related environment variables for proxies or self-signed certs.
Admin Privileges: UCX install requires workspace and sometimes cloud/account admin rights.
Version Checks: Use Python 3.10+ and Databricks CLI v0.213+; always run latest UCX version.
Authentication: Proper CLI profiles for workspace and account must be configured.
Multiple Profiles: Select correct profile with --profile during install.
External HMS: Clusters and SQL warehouses must be correctly configured for external Hive Metastore access.
Post-Install: Verify UCX schema and jobs in workspace, run assessments to check migration readiness.