When you connect an HCX Manager appliance to a VMware Cloud Foundation (VCF) 9 Management vCenter, you may experience the following issues:
This issue occurs when the standard VMware HCX OVA (e.g., version 4.11.x) is deployed instead of the VCF-specific "VMware Cloud Foundation Operations HCX" OVA. The standard HCX 4.11.x release stream lacks the required integration logic to automatically ingest VCF 9 license keys from the Management vCenter, and it is incompatible with VCF 9's updated SSO integration requirements.
To resolve this issue, you must deploy the correct VCF-integrated HCX appliance.
The vCenter HCX plugin is deprecated in VCF 9. For more information, see HCX vCenter Plug-in fails with "Invalid credentials" or 401 Error after upgrading to VCF 9.0 / HCX 9.0