diff --git a/tests/ZB.MOM.WW.ScadaBridge.ManagementService.Tests/ManagementActorTests.cs b/tests/ZB.MOM.WW.ScadaBridge.ManagementService.Tests/ManagementActorTests.cs
index 67348661..3182fd66 100644
--- a/tests/ZB.MOM.WW.ScadaBridge.ManagementService.Tests/ManagementActorTests.cs
+++ b/tests/ZB.MOM.WW.ScadaBridge.ManagementService.Tests/ManagementActorTests.cs
@@ -8,6 +8,7 @@ using NSubstitute;
 using ZB.MOM.WW.ScadaBridge.Communication;
 using ZB.MOM.WW.ScadaBridge.Communication.Grpc;
 using NSubstitute.ExceptionExtensions;
+using ZB.MOM.WW.ScadaBridge.Commons.Entities.Deployment;
 using ZB.MOM.WW.ScadaBridge.Commons.Entities.Instances;
 using ZB.MOM.WW.ScadaBridge.Commons.Entities.Sites;
 using ZB.MOM.WW.ScadaBridge.Commons.Entities.Schemas;
@@ -90,6 +91,33 @@ public class ManagementActorTests : TestKit, IDisposable
         _services.AddScoped(_ => _artifactService);
     }
 
+    /// <summary>
+    /// Registers a REAL <see cref="DeploymentService"/> over substituted repositories
+    /// (its methods are not virtual, so it cannot be substituted itself — the same
+    /// approach the CentralUI bUnit tests take). Area lookups go through the
+    /// fixture's shared <see cref="_templateRepo"/>.
+    /// </summary>
+    private (IDeploymentManagerRepository DeployRepo, IFlatteningPipeline Pipeline, ISiteRepository SiteRepo) RegisterDeploymentService()
+    {
+        var deployRepo = Substitute.For<IDeploymentManagerRepository>();
+        var pipeline = Substitute.For<IFlatteningPipeline>();
+        var siteRepo = Substitute.For<ISiteRepository>();
+        pipeline.CreateSession().Returns(_ => new FlattenSession(new TemplateGraphWatermark()));
+
+        var service = new DeploymentService(
+            deployRepo, siteRepo, _templateRepo, pipeline,
+            new CommunicationService(Options.Create(new CommunicationOptions()), NullLogger<CommunicationService>.Instance),
+            new OperationLockManager(), _auditService,
+            new ZB.MOM.WW.ScadaBridge.TemplateEngine.Flattening.DiffService(),
+            new ZB.MOM.WW.ScadaBridge.TemplateEngine.Flattening.RevisionHashService(),
+            new DeploymentStatusNotifier(NullLogger<DeploymentStatusNotifier>.Instance),
+            Options.Create(new DeploymentManagerOptions { OperationLockTimeout = TimeSpan.FromSeconds(5) }),
+            Options.Create(new CommunicationOptions()),
+            NullLogger<DeploymentService>.Instance);
+        _services.AddScoped(_ => service);
+        return (deployRepo, pipeline, siteRepo);
+    }
+
     private static Result<ArtifactDeploymentSummary> DeploySummary() =>
         Result<ArtifactDeploymentSummary>.Success(
             new ArtifactDeploymentSummary("deploy-1", Array.Empty<SiteArtifactResult>(), 1, 0));
@@ -1449,6 +1477,82 @@ public class ManagementActorTests : TestKit, IDisposable
         ExpectMsg<ManagementUnauthorized>(TimeSpan.FromSeconds(5));
     }
 
+    /// <summary>
+    /// The in-scope success path of <c>MgmtDeployArea</c>: the handler resolves the
+    /// REAL <see cref="DeploymentService"/> (its methods are not virtual, so it runs
+    /// over substituted repositories), relays the command's <c>Force</c> verbatim to
+    /// <c>DeployAreaAsync</c>, and returns the bulk summary as the success payload.
+    ///
+    /// <para>
+    /// <c>Force</c> is observable without a site: the one instance in the area is
+    /// up-to-date, so unforced it is reported as an up-to-date skip; forced it is
+    /// attempted, and the substituted flatten refuses it, so it comes back as a
+    /// failed row — neither path ever reaches the site.
+    /// </para>
+    /// </summary>
+    /// <param name="force">The command's <c>Force</c> flag.</param>
+    [Theory]
+    [InlineData(false)]
+    [InlineData(true)]
+    public void DeployArea_InScopeForSiteScopedUser_RelaysForce_AndReturnsSummary(bool force)
+    {
+        var (deployRepo, pipeline, siteRepo) = RegisterDeploymentService();
+
+        var area = new Area("Line") { Id = 12, SiteId = 1 };
+        _templateRepo.GetAreaByIdAsync(12, Arg.Any<CancellationToken>()).Returns(area);
+        _templateRepo.GetAreasBySiteIdAsync(1, Arg.Any<CancellationToken>())
+            .Returns((IReadOnlyList<Area>)new List<Area> { area });
+        siteRepo.GetSiteByIdAsync(1, Arg.Any<CancellationToken>())
+            .Returns(new Site("Site 1", "site-1") { Id = 1 });
+
+        var instance = new Instance("Pump5") { Id = 5, SiteId = 1, AreaId = 12, TemplateId = 10, State = InstanceState.Enabled };
+        siteRepo.GetInstancesBySiteIdAsync(1, Arg.Any<CancellationToken>())
+            .Returns((IReadOnlyList<Instance>)new List<Instance> { instance });
+        deployRepo.GetInstanceByIdAsync(5, Arg.Any<CancellationToken>()).Returns(instance);
+
+        // Up-to-date: the deployed snapshot's hash equals the freshly recomputed one.
+        var prior = new DeploymentRecord("prior-5", "admin")
+        {
+            InstanceId = 5, Status = DeploymentStatus.Success, RevisionHash = "sha256:5",
+        };
+        deployRepo.GetDeployedRevisionHashesAsync(Arg.Any<CancellationToken>())
+            .Returns((IReadOnlyDictionary<int, string>)new Dictionary<int, string> { [5] = "sha256:5" });
+        deployRepo.GetCurrentDeploymentStatusesAsync(Arg.Any<IReadOnlyCollection<int>>(), Arg.Any<CancellationToken>())
+            .Returns((IReadOnlyDictionary<int, DeploymentRecord>)new Dictionary<int, DeploymentRecord> { [5] = prior });
+        deployRepo.GetCurrentDeploymentStatusAsync(5, Arg.Any<CancellationToken>()).Returns(prior);
+        pipeline.ComputeRevisionHashAsync(5, Arg.Any<FlattenSession?>(), Arg.Any<CancellationToken>())
+            .Returns(Result<string>.Success("sha256:5"));
+        pipeline.FlattenAndValidateAsync(5, Arg.Any<CancellationToken>(), Arg.Any<bool>(), Arg.Any<FlattenSession?>())
+            .Returns(Result<FlatteningPipelineResult>.Failure("flatten refused by test"));
+
+        var actor = CreateActor();
+        var envelope = ScopedEnvelope(new MgmtDeployAreaCommand(12, force), new[] { "1" }, "Deployer");
+
+        actor.Tell(envelope);
+
+        var response = ExpectMsg<ManagementSuccess>(TimeSpan.FromSeconds(10));
+        Assert.Equal(envelope.CorrelationId, response.CorrelationId);
+        var summary = JsonSerializer.Deserialize<SiteDeploymentSummary>(
+            response.JsonData, new JsonSerializerOptions { PropertyNameCaseInsensitive = true })!;
+        Assert.Equal("site-1", summary.SiteIdentifier);
+
+        if (force)
+        {
+            var row = Assert.Single(summary.InstanceResults);
+            Assert.Equal("Pump5", row.UniqueName);
+            Assert.False(row.Success);
+            Assert.Equal(1, summary.FailureCount);
+            Assert.Empty(summary.SkippedInstances ?? []);
+        }
+        else
+        {
+            Assert.Empty(summary.InstanceResults);
+            var skipped = Assert.Single(summary.SkippedInstances!);
+            Assert.Equal("Pump5", skipped.UniqueName);
+            Assert.Contains("up-to-date", skipped.Reason);
+        }
+    }
+
     /// <summary>Verifies that get instance, when in scope for site scoped user, returns success.</summary>
     [Fact]
     public void GetInstance_InScopeForSiteScopedUser_ReturnsSuccess()