How to call microsoft hosted netowork in the terraform azapi

I am trying to create a dev box pool via following azapi Microsoft.DevCenter/projects/pools 2023-04-01 - Bicep, ARM template & Terraform AzAPI reference | Microsoft Learn and I am getting following error when trying to use the default microsoft hosted network ( managedNetwork). I was able to create a dev box pool manually via UI and in the template I can see that the value is mangedNetwork for the networkConnectionName but when I try to run terraform apply I get following error:
{
│ “code”: “AttachedNetworkConnectionNotFound”,
│ “target”: “”,
│ “message”: “The Network Connection could not be found. Ensure the Network Connection is attached to the Dev Center.”,

I think there is likely some further configuration that is missing / not yet in place. See my response to your related question on your original thread: