{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentParameters.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspaceName": {
      "value": "GEN-UNIQUE"
    },
    "location": {
      "value": "westcentralus"
    },
    "storageAccountBehindVnet": {
      "value": "true"
    },
    "keyVaultBehindVnet": {
      "value": "true"
    },
    "containerRegistryOption": {
      "value": "new"
    },
    "containerRegistrySku": {
      "value": "Premium"
    },
    "privateEndpointType": {
      "value": "AutoApproval"
    }
  }
}

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentParameters.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspaceName": {
      "value": "GEN-UNIQUE-10"
    },
    "location": {
      "value": "westcentralus"
    },
    "storageAccountBehindVnet": {
      "value": "true"
    },
    "keyVaultBehindVnet": {
      "value": "true"
    },
    "containerRegistryOption": {
      "value": "new"
    },
    "containerRegistrySku": {
      "value": "Premium"
    },
    "privateEndpointType": {
      "value": "AutoApproval"
    }
  }
}

Change unique string length for workspace name
Change unique string length for workspace name