Kubernetes upgrade at times require removal of APIM subnet. After upgrade, APIM IP changes and this requires a change in Cname entry of DNS Server. All these activities increase the downtime window and we really need a feature which help us to assign Static IP to API Management Service

Error:
"code": "InUseSubnetCannotBeDeleted",
"message": "Subnet ***-gateway-subnet is in use by /subscriptions/-X/providers/Microsoft.ApiManagement/service?vnetResourceGuid=X\X\api-version=2016-07-07 and cannot be deleted. In order to delete the subnet, delete all the resources within the subnet. See aka.ms/deletesubnet."
}