Keyvault created is not visible under subscription for Keyvault API connection

I created a API connection with ARM Template for Keyvault with managed identity . i didnt create Keyvault before hand but specified the vault name as mentioned in some document.

            "parameterValueType": "Alternative",  
            "alternativeParameterValues": {  
                "vaultName": "[parameters('Connection_vaultName')]"  
            },  

Resource got created. but i am unable to find the keyvault in my subscription as well as i am unable to create a keyvault with same name as it throws error as KeyVault name already exit.

How to resolve this issue.

This is the ARM Template i used for deployment.
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"connections_keyvault_name": {
"defaultValue": "keyvault",
"type": "String"
},
"env": {
"defaultValue": "dev",
"type": "string"
},
"Connection_vaultName": {
"type": "string",
"defaultValue": ""
}
},
"variables": {},
"resources": [
{
"type": "Microsoft.Web/connections",
"apiVersion": "2016-06-01",
"name": "[parameters('connections_keyvault_name')]",
"location": "[resourceGroup().location]",
"kind": "V1",
"properties": {
"displayName": "[parameters('connections_keyvault_name')]",
"statuses": [
{
"status": "Ready"
}
],
"customParameterValues": {},
"createdTime": "2022-11-03T04:53:20.6599559Z",
"changedTime": "2022-11-03T04:53:20.6599559Z",
"api": {
"name": "keyvault",
"displayName": "Azure Key Vault",
"description": "Azure Key Vault is a service to securely store and access secrets.",
"iconUri": "https://connectoricons-prod.azureedge.net/releases/v1.0.1597/1.0.1597.3005/keyvault/icon.png",
"brandColor": "#0079d6",
"id": "[concat(subscription().id,'/providers/Microsoft.Web/locations/',resourceGroup().location,'/managedApis/keyvault')]",
"type": "Microsoft.Web/locations/managedApis"
},
"parameterValueType": "Alternative",
"alternativeParameterValues": {
"vaultName": "[parameters('Connection_vaultName')]"
},
"testLinks": []
}
}
]
}