public ActionResult <ProductInstanceModel> CreateInstance(string identifier, short revision, bool save)
        {
            var identity    = new ProductIdentity(WebUtility.HtmlEncode(identifier), revision);
            var productType = _productManagement.LoadType(identity);

            if (productType == null)
            {
                return(BadRequest($"Product type not found"));
            }
            var instance = _productManagement.CreateInstance(productType, save);

            return(_productConverter.ConvertProductInstance(instance));
        }