Unable to add a host to the cluster, as the "NEXT" to proceed option is greyed out on SDDC manager UI

Products

• VMware SDDC Manager

Issue/Introduction

Symptoms:

• Unable to add a host to the cluster, as the "next" to proceed option is greyed out on SDDC Manager UI. However, the same option is available on another Workload Domain cluster within the same platform.
• Selected resources: 0 Cores O GB Memory. O GB Storage. Host NICS
  

Environment

VMware Cloud Foundation 5.x

Resolution

Workaround:

• Add a Host to a vSphere Cluster Using the VMware Cloud Foundation API - see resources
  https://developer.broadcom.com/xapis/vmware-cloud-foundation-api/latest/data-structures/ClusterExpansionSpec/  
  
  https://techdocs.broadcom.com/it/it/vmware-cis/vcf/vcf-5-2-and-earlier/5-0/map-for-administering-vcf-5-0/working-with-workload-domains-admin/expand-a-workload-domain-admin/add-a-host-to-a-vsphere-cluster-using-the-vmware-cloud-foundation-api-admin.html