Unable to set Load Balancer FQDN as the System Access URL for VCF Operations - BASE_URL is not in valid format or range

Products

• VMware SDDC Manager / VCF Installer

Issue/Introduction

When configuring the Load Balancer FQDN as the System Access URL for VCF Operations - this error may be seen: Specified value 'https://mydomain.example' for global setting key 'BASE_URL' is not in valid format or range.

Environment

VCF Operations 9.0.x

Cause

This is caused by custom domain names being used. Versions 9.0 through 9.0.2 strictly enforce domain validation against the IANA official list, preventing the use of custom or internal domains.

Resolution

For environments running 9.0, 9.0.1, or 9.0.2, ensure all configured domains match the officially recognized Top-Level Domains (TLDs) provided by IANA: https://data.iana.org/TLD/tlds-alpha-by-domain.txt.

This limitation has been lifted in release 9.1. Upgrading to 9.1 will allow the use of custom domains (e.g., .example).