Extended Service Creation and Swapping

### Description

I am trying to create an extended classic service (stg and prod) and then have them swapped. Using the below script to create the service and then microsoft provided script to swap. But on running the swap I am getting error saying the swappableId is not set. I am using keyvault for certificate so went with this script.

New-AzCloudService `
-Name ContosoCS `
-ResourceGroupName ContosOrg `
-Location EastUS `
-ConfigurationFile C:\files\CS.cscfg `
-DefinitionFile C:\files\CS.csdef `
-PackageFile C:\CS.cspkg `
-StorageAccount ContosoStorAcc `
-KeyVaultName ContosoKV

Error:
error": {
"code": "SwappableCloudServicePropertyNotSet",
"message": "SwappableCloudService property in networkProfile for cloudService

In the create script I dont see a parameter to include swappableId or the network profile. Is there anyway to include this in csfg file or add the profile via script?

Please advise.

### Script or Debug output

_No response_

### Environment data

_No response_

### Module versions

_No response_

### Error output

_No response_

Start with the New-AzCloudService command shown in the issue and compare it with the Microsoft-provided swap script. Investigate whether swappableId or the network profile can be supplied through the command or the referenced CS.cscfg file; done means identifying a supported configuration or confirming that the command lacks this capability.

Written by the indexing model from the issue text.