diff --git a/src/ScadaLink.ConfigurationDatabase/ServiceCollectionExtensions.cs b/src/ScadaLink.ConfigurationDatabase/ServiceCollectionExtensions.cs
index d926f1e..62266ec 100644
--- a/src/ScadaLink.ConfigurationDatabase/ServiceCollectionExtensions.cs
+++ b/src/ScadaLink.ConfigurationDatabase/ServiceCollectionExtensions.cs
@@ -4,6 +4,7 @@ using Microsoft.Extensions.DependencyInjection;
 using ScadaLink.Commons.Interfaces;
 using ScadaLink.Commons.Interfaces.Repositories;
 using ScadaLink.Commons.Interfaces.Services;
+using ScadaLink.Commons.Interfaces.Transport;
 using ScadaLink.ConfigurationDatabase.Maintenance;
 using ScadaLink.ConfigurationDatabase.Repositories;
 using ScadaLink.ConfigurationDatabase.Services;
@@ -51,6 +52,7 @@ public static class ServiceCollectionExtensions
         services.AddScoped<IAuditLogRepository, AuditLogRepository>();
         services.AddScoped<ISiteCallAuditRepository, SiteCallAuditRepository>();
         services.AddScoped<IInboundApiRepository, InboundApiRepository>();
+        services.AddScoped<IAuditCorrelationContext, AuditCorrelationContext>();
         services.AddScoped<IAuditService, AuditService>();
         services.AddScoped<IInstanceLocator, InstanceLocator>();
 
diff --git a/src/ScadaLink.ConfigurationDatabase/Services/AuditCorrelationContext.cs b/src/ScadaLink.ConfigurationDatabase/Services/AuditCorrelationContext.cs
new file mode 100644
index 0000000..180cdb3
--- /dev/null
+++ b/src/ScadaLink.ConfigurationDatabase/Services/AuditCorrelationContext.cs
@@ -0,0 +1,14 @@
+using ScadaLink.Commons.Interfaces.Transport;
+
+namespace ScadaLink.ConfigurationDatabase.Services;
+
+/// <summary>
+/// Per-scope mutable holder for the active bundle import id. AuditService reads it
+/// while writing AuditLogEntry rows. Registered as Scoped so each Blazor circuit /
+/// request gets its own value; ApplyAsync explicitly creates a service scope and
+/// sets the id at the top of the transaction.
+/// </summary>
+public sealed class AuditCorrelationContext : IAuditCorrelationContext
+{
+    public Guid? BundleImportId { get; set; }
+}