diff --git a/CHANGELOG.md b/CHANGELOG.md
index 920544da..35730ec0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+- Used metric instead of log to improve efficiency
 
 ## [3.0.2] - 2021-09-22
 
diff --git a/dotnet/DataSources/ProductReviewRepository.cs b/dotnet/DataSources/ProductReviewRepository.cs
index 2e4e7e42..b227ad74 100644
--- a/dotnet/DataSources/ProductReviewRepository.cs
+++ b/dotnet/DataSources/ProductReviewRepository.cs
@@ -83,7 +83,7 @@ public async Task<IList<LegacyReview>> GetProductReviewsAsync(string productId)
                 //_context.Vtex.Logger.Info("GetProductReviewsAsync", null, $"[{response.StatusCode}] {responseContent}");
                 if (response.StatusCode == HttpStatusCode.NotFound)
                 {
-                    _context.Vtex.Logger.Info("GetProductReviewsAsync", null, $"[{response.StatusCode}] {responseContent}");
+                    _context.Vtex.Logger.Metric("GetProductReviewsAsyncNotFound", 1, new (string, string)[]{("ProductId", productId)});
                     return null;
                 }
             }
@@ -304,7 +304,7 @@ public async Task<bool> ValidateKeyAndToken(string key, string token, string bas
                     }
                     else
                     {
-                        _context.Vtex.Logger.Info("ValidateKeyAndToken", null, $"[{response.StatusCode}]");
+                        _context.Vtex.Logger.Metric("ValidateKeyAndToken", 1, new []{("StatusCode", response.StatusCode.ToString())});
                     }
                 }
                 catch (Exception ex)