diff --git a/src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Deployment/FlowStepDetail.razor b/src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Deployment/FlowStepDetail.razor
index cb9bbcc8..ce941dea 100644
--- a/src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Deployment/FlowStepDetail.razor
+++ b/src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Deployment/FlowStepDetail.razor
@@ -223,7 +223,7 @@
     private string? ReportHref
         => Step is { CorrelationId: { } c } s && IsOutbound && s.Lifecycle is { Count: > 0 }
             ? s.Kind == FlowStepKind.Notify
-                ? $"/notifications/report?correlationId={c:D}"
+                ? $"/notifications/report?correlationId={c:N}" // NotificationId is minted as "N" (no dashes) — see ScriptRuntimeContext.Notify
                 : $"/site-calls/report?correlationId={c:D}"
             : null;
 
diff --git a/src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Pages/Notifications/NotificationReport.razor b/src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Pages/Notifications/NotificationReport.razor
index 09f29ef5..87967c19 100644
--- a/src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Pages/Notifications/NotificationReport.razor
+++ b/src/ZB.MOM.WW.ScadaBridge.CentralUI/Components/Pages/Notifications/NotificationReport.razor
@@ -515,7 +515,9 @@
             var candidate = values.ToString()?.Trim();
             if (!string.IsNullOrEmpty(candidate) && candidate.Length <= MaxNotificationIdFilterLength)
             {
-                _notificationIdFilter = candidate;
+                // NotificationId is minted as a Guid in "N" form (no dashes); a caller that only has the
+                // audit row's CorrelationId (a Guid, usually rendered "D") must still land on the row.
+                _notificationIdFilter = Guid.TryParse(candidate, out var guid) ? guid.ToString("N") : candidate;
             }
         }
     }
diff --git a/src/ZB.MOM.WW.ScadaBridge.CentralUI/Services/FlowDebugService.cs b/src/ZB.MOM.WW.ScadaBridge.CentralUI/Services/FlowDebugService.cs
index c143bb3c..2d2eb085 100644
--- a/src/ZB.MOM.WW.ScadaBridge.CentralUI/Services/FlowDebugService.cs
+++ b/src/ZB.MOM.WW.ScadaBridge.CentralUI/Services/FlowDebugService.cs
@@ -225,7 +225,9 @@ public sealed class FlowDebugService : IFlowDebugService
 
             if (isNotify)
             {
-                var notificationId = c.ToString("D");
+                // Notify.Send mints NotificationId as Guid "N" (no dashes; ScriptRuntimeContext) and the
+                // outbox parses it back into the audit row's CorrelationId — so the relay key is "N".
+                var notificationId = c.ToString("N");
                 if (retry)
                 {
                     var r = await _comms.RetryNotificationAsync(new RetryNotificationRequest(corr, notificationId, requestedBy), ct);
diff --git a/tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Deployment/FlowStepDetailTests.cs b/tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Deployment/FlowStepDetailTests.cs
index ed41976a..6a2b65f9 100644
--- a/tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Deployment/FlowStepDetailTests.cs
+++ b/tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Deployment/FlowStepDetailTests.cs
@@ -106,7 +106,7 @@ public class FlowStepDetailTests : BunitContext
         var notify = Step(FlowStepKind.Notify, FlowStepOutcome.Ok, "Planners", CachedLifecycle("Delivered"), c);
         cut = Render<FlowStepDetail>(p => p.Add(x => x.Step, notify));
         link = cut.Find("a[data-test=open-report]");
-        Assert.Equal($"/notifications/report?correlationId={c:D}", link.GetAttribute("href"));
+        Assert.Equal($"/notifications/report?correlationId={c:N}", link.GetAttribute("href"));
         Assert.Equal("Open in Notification report", link.TextContent.Trim());
 
         var sync = Step(FlowStepKind.ApiCall, FlowStepOutcome.Ok, "Delmia.AckRecipe");
@@ -167,7 +167,7 @@ public class FlowStepDetailTests : BunitContext
         Assert.Contains("Parked", hint.TextContent);
         var hintLink = hint.QuerySelector("a");
         Assert.NotNull(hintLink);
-        Assert.Equal($"/notifications/report?correlationId={c:D}", hintLink!.GetAttribute("href"));
+        Assert.Equal($"/notifications/report?correlationId={c:N}", hintLink!.GetAttribute("href"));
     }
 
     [Fact]
diff --git a/tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Pages/NotificationReportPageTests.cs b/tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Pages/NotificationReportPageTests.cs
index a8f58006..fd377ac2 100644
--- a/tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Pages/NotificationReportPageTests.cs
+++ b/tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Pages/NotificationReportPageTests.cs
@@ -248,6 +248,25 @@ public class NotificationReportPageTests : BunitContext
     // with that id comes back.
     // ─────────────────────────────────────────────────────────────────────────
 
+    [Fact]
+    public void NotificationReport_CorrelationIdQuery_DashedGuid_IsNormalisedToTheStoredNForm()
+    {
+        // Notify.Send mints NotificationId as Guid "N"; the Flow Debugger / Audit Log hold the
+        // same value as a Guid and may render it "D". Either spelling must filter to the row.
+        var guid = Guid.Parse("a72bc17f-b681-43eb-a364-e136c54d51c0");
+        var nav = (BunitNavigationManager)Services.GetRequiredService<NavigationManager>();
+        nav.NavigateTo($"/notifications/report?correlationId={guid:D}");
+
+        var cut = Render<NotificationReportPage>();
+
+        cut.WaitForAssertion(() =>
+        {
+            Assert.Single(_queryRequests);
+            Assert.Equal(guid.ToString("N"), _queryRequests[0].NotificationIdFilter);
+            Assert.Contains(guid.ToString("N")[..12], cut.Find("[data-test='notif-filter-notification']").TextContent);
+        });
+    }
+
     [Fact]
     public void NotificationReport_CorrelationIdQuery_SeedsTheNotificationFilterAndAutoOpensDetail()
     {
diff --git a/tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Services/FlowDebugServiceTests.cs b/tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Services/FlowDebugServiceTests.cs
index 8b1f8df8..c4414b7b 100644
--- a/tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Services/FlowDebugServiceTests.cs
+++ b/tests/ZB.MOM.WW.ScadaBridge.CentralUI.Tests/Services/FlowDebugServiceTests.cs
@@ -120,7 +120,7 @@ public sealed class FlowDebugServiceTests : IDisposable
         Assert.True(result.Success, result.Message);
         Assert.Contains("re-queued", result.Message);
         var request = Assert.IsType<RetryNotificationRequest>(Assert.Single(_outboxRequests));
-        Assert.Equal(c.ToString("D"), request.NotificationId);
+        Assert.Equal(c.ToString("N"), request.NotificationId);
         Assert.Equal("tester", request.RequestedBy);
         Assert.Empty(_siteCallRequests);
     }