diff --git a/EstateReportingAPI.BusinessLogic/ReportingManager.cs b/EstateReportingAPI.BusinessLogic/ReportingManager.cs
index 6d800c3..c40cb61 100644
--- a/EstateReportingAPI.BusinessLogic/ReportingManager.cs
+++ b/EstateReportingAPI.BusinessLogic/ReportingManager.cs
@@ -2064,14 +2064,14 @@ private static MerchantDailyPerformanceSummaryResponse BuildEmptyMerchantDailyPe
 
         private static List<MetricItem> BuildMerchantDailyPerformanceBaseMetrics() {
             return new List<MetricItem> {
-                new() { Title = "Total Sales Count", Value = 0, Description = "All sales transactions in the range", Category = 0 },
-                new() { Title = "Total Sales Value", Value = 0, Description = "All sales value in the range", Category = 1 },
-                new() { Title = "Successful Sales Count", Value = 0, Description = "Authorised sales count in the range", Category = 2 },
-                new() { Title = "Successful Sales Value", Value = 0, Description = "Authorised sales value in the range", Category = 3 },
-                new() { Title = "Failed Sales Count", Value = 0, Description = "Declined sales count in the range", Category = 4 },
-                new() { Title = "Failed Sales Value", Value = 0, Description = "Declined sales value in the range", Category = 5 },
-                new() { Title = "Average Sales Count", Value = 0, Description = "Average sales count per day in the range", Category = 6 },
-                new() { Title = "Average Sales Value", Value = 0, Description = "Average value per sale in the range", Category = 7 }
+                new() { Title = "Total Sales Count", Value = 0, Description = "All sales transactions in the range", Category = 1, Type = 0 },
+                new() { Title = "Total Sales Value", Value = 0, Description = "All sales value in the range", Category = 1, Type = 1 },
+                new() { Title = "Successful Sales Count", Value = 0, Description = "Authorised sales count in the range", Category = 2, Type = 2 },
+                new() { Title = "Successful Sales Value", Value = 0, Description = "Authorised sales value in the range", Category = 2, Type = 3 },
+                new() { Title = "Failed Sales Count", Value = 0, Description = "Declined sales count in the range", Category = 3, Type = 4 },
+                new() { Title = "Failed Sales Value", Value = 0, Description = "Declined sales value in the range", Category = 3, Type = 5 },
+                new() { Title = "Average Sales Count", Value = 0, Description = "Average sales count per day in the range", Category = 4, Type = 6 },
+                new() { Title = "Average Sales Value", Value = 0, Description = "Average value per sale in the range", Category = 4, Type = 7 }
             };
         }
 
diff --git a/EstateReportingAPI.IntegrationTests/TransactionsEndpointTests.cs b/EstateReportingAPI.IntegrationTests/TransactionsEndpointTests.cs
index 9b039f7..6b69b79 100644
--- a/EstateReportingAPI.IntegrationTests/TransactionsEndpointTests.cs
+++ b/EstateReportingAPI.IntegrationTests/TransactionsEndpointTests.cs
@@ -1401,6 +1401,90 @@ public async Task TransactionsEndpoint_MerchantDailyPerformanceSummary_ReturnsMe
         }
     }
 
+    [Fact]
+    public async Task TransactionsEndpoint_MerchantDailyPerformanceSummary_NoSales_ReturnsStableMetricCategories()
+    {
+        TransactionProcessor.Database.Entities.Merchant merchant = this.merchantsList.Single(m => m.Name == "Test Merchant 1");
+        DateTime startDate = DateTime.Now.Date.AddYears(1);
+        DateTime endDate = startDate.AddDays(6);
+
+        MerchantDailyPerformanceSummaryRequest request = new()
+        {
+            StartDate = startDate,
+            EndDate = endDate,
+            MerchantReportingId = merchant.MerchantReportingId
+        };
+
+        var payload = JsonSerializer.Serialize(request);
+        var result = await this.CreateAndSendHttpRequestMessage<MerchantDailyPerformanceSummaryResponse>(
+            $"{this.BaseRoute}/merchantdailyperformancesummary",
+            payload,
+            CancellationToken.None);
+
+        result.IsFailed.ShouldBeFalse(result.ToString());
+
+        MerchantDailyPerformanceSummaryResponse response = result.Data;
+        response.Metrics.Count.ShouldBe(8);
+        response.DrillDownTransactions.Count.ShouldBe(0);
+
+        AssertMerchantDailyPerformanceMetricMatches(
+            response.Metrics.Single(m => m.Title == "Total Sales Count"),
+            "Total Sales Count",
+            0,
+            "All sales transactions in the range",
+            1,
+            0);
+        AssertMerchantDailyPerformanceMetricMatches(
+            response.Metrics.Single(m => m.Title == "Total Sales Value"),
+            "Total Sales Value",
+            0,
+            "All sales value in the range",
+            1,
+            1);
+        AssertMerchantDailyPerformanceMetricMatches(
+            response.Metrics.Single(m => m.Title == "Successful Sales Count"),
+            "Successful Sales Count",
+            0,
+            "Authorised sales count in the range",
+            2,
+            2);
+        AssertMerchantDailyPerformanceMetricMatches(
+            response.Metrics.Single(m => m.Title == "Successful Sales Value"),
+            "Successful Sales Value",
+            0,
+            "Authorised sales value in the range",
+            2,
+            3);
+        AssertMerchantDailyPerformanceMetricMatches(
+            response.Metrics.Single(m => m.Title == "Failed Sales Count"),
+            "Failed Sales Count",
+            0,
+            "Declined sales count in the range",
+            3,
+            4);
+        AssertMerchantDailyPerformanceMetricMatches(
+            response.Metrics.Single(m => m.Title == "Failed Sales Value"),
+            "Failed Sales Value",
+            0,
+            "Declined sales value in the range",
+            3,
+            5);
+        AssertMerchantDailyPerformanceMetricMatches(
+            response.Metrics.Single(m => m.Title == "Average Sales Count"),
+            "Average Sales Count",
+            0,
+            "Average sales count per day in the range",
+            4,
+            6);
+        AssertMerchantDailyPerformanceMetricMatches(
+            response.Metrics.Single(m => m.Title == "Average Sales Value"),
+            "Average Sales Value",
+            0,
+            "Average value per sale in the range",
+            4,
+            7);
+    }
+
     [Fact]
     public async Task TransactionsEndpoint_RecentActivityReceiptReport_MerchantFilter_ReturnsDescendingResults() {
         var reportDate = DateTime.Now.Date;
diff --git a/global.json b/global.json
new file mode 100644
index 0000000..3140116
--- /dev/null
+++ b/global.json
@@ -0,0 +1,5 @@
+{
+  "test": {
+    "runner": "Microsoft.Testing.Platform"
+  }
+}