core/homeassistant/components/simplisafe/strings.json

{
  "config": {
    "title": "SimpliSafe",
    "step": {
      "user": {
        "title": "Fill in your information",
        "data": {
          "username": "Email Address",
          "password": "Password",
          "code": "Code (for Home Assistant)"
        }
      }
    },
    "error": {
      "identifier_exists": "Account already registered",
      "invalid_credentials": "Invalid credentials"
    }
  }
}