When deleting a Tier-1 or Tier-0 it cannot be deleted because of referenced objects

Products

• VMware NSX
• VMware NSX-T Data Center

Issue/Introduction

• You are removing a Tier-1 or Tier-0 gateway for decommissioning purposes
• When deleting from the Manager UI you get an error:
  "Error: The object <Tier-1 or Tier-0 name> cannot be deleted as either it has children or it is being referenced by other objects <object name> (Error code: 500030)"

Environment

VMware NSX
VMware NSX-T Data Center

Resolution

You need to remove the configuration or objects associated with the Tier-1 or Tier-0 gateway prior to removing them.
This could be segments, interfaces, load balancers etc.
After you have done that, you will be able to remove the Tier-1 or Tier-0 successfully.

Additional Information

If you are removing Edge nodes, refer to: Remove NSX Edge Nodes from an Edge Cluster