diff --git a/Api.SeaHavenIndustries.Tests/DashboardControllerTests.cs b/Api.SeaHavenIndustries.Tests/DashboardControllerTests.cs
index 4ef3b58..ddd6082 100644
--- a/Api.SeaHavenIndustries.Tests/DashboardControllerTests.cs
+++ b/Api.SeaHavenIndustries.Tests/DashboardControllerTests.cs
@@ -40,7 +40,8 @@ public class DashboardControllerTests
             {
                 ScheduledTomorrow = 3,
                 PendingUplifts = 5,
-                AvetaPending = 7
+                AvetaPending = 7,
+                Unassigned = 11
             });
 
         var result = await NewController(service).GetStats(
@@ -50,5 +51,6 @@ public class DashboardControllerTests
         ((int)Prop(body, "scheduledTomorrow")).Should().Be(3);
         ((int)Prop(body, "pendingUplifts")).Should().Be(5);
         ((int)Prop(body, "avetaPending")).Should().Be(7);
+        ((int)Prop(body, "unassigned")).Should().Be(11);
     }
 }
diff --git a/Api.SeaHavenIndustries.Tests/DashboardUnassignedTests.cs b/Api.SeaHavenIndustries.Tests/DashboardUnassignedTests.cs
new file mode 100644
index 0000000..996b53c
--- /dev/null
+++ b/Api.SeaHavenIndustries.Tests/DashboardUnassignedTests.cs
@@ -0,0 +1,249 @@
+using System.Security.Claims;
+using Data.SeaHavenIndustries;
+using Data.SeaHavenIndustries.Enums;
+using FluentAssertions;
+using Microsoft.EntityFrameworkCore;
+using SeaHaven.DataServices.Implementation;
+using SeaHaven.Services.DTOs;
+using SeaHaven.Services.Helpers;
+using SeaHaven.Services.Implementation;
+using Xunit;
+
+namespace Api.SeaHavenIndustries.Tests;
+
+/// <summary>
+/// The Dashboard "Unassigned" count is open work orders with no
+/// dispatcher in the selected period, and it equals the Work Orders list the
+/// tile drills into (GET /board/search, Dispatcher = Unassigned).
+/// </summary>
+public class DashboardUnassignedTests
+{
+    private static readonly DateOnly From = new(2026, 9, 21);
+    private static readonly DateOnly To = new(2026, 9, 25);
+
+    private static readonly List<LifecycleStatus> OpenStatuses = Enum.GetValues<LifecycleStatus>()
+        .Where(s => s != LifecycleStatus.Completed && s != LifecycleStatus.Canceled)
+        .ToList();
+
+    private static ApplicationDbContext NewContext()
+    {
+        var options = new DbContextOptionsBuilder<ApplicationDbContext>()
+            .UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString())
+            .Options;
+        return new ApplicationDbContext(options);
+    }
+
+    private static WorkOrderAccountResolver Resolver(ApplicationDbContext ctx)
+        => new(new AccountDataService(ctx), new LocationDataService(ctx));
+
+    private static DashboardService NewDashboard(ApplicationDbContext ctx)
+        => new(new DashboardDataService(ctx), Resolver(ctx));
+
+    private static WorkOrderAdvancedSearchService NewSearch(ApplicationDbContext ctx)
+        => new(new WorkOrderAdvancedSearchDataService(ctx), Resolver(ctx));
+
+    private static ClaimsPrincipal AccountUser(int accountId, string role = "Admin", string userId = "admin-1")
+        => new(new ClaimsIdentity(new[]
+        {
+            new Claim(SeaHavenClaimTypes.AccountId, accountId.ToString()),
+            new Claim(ClaimTypes.NameIdentifier, userId),
+            new Claim(ClaimTypes.Role, role)
+        }, "test"));
+
+    private static WorkOrder Wo(
+        int id,
+        DateTime? scheduled,
+        string? assignTo = null,
+        LifecycleStatus? status = LifecycleStatus.Scheduled,
+        DateOnly? targetWeek = null,
+        int accountId = 1,
+        string? legacyStatus = null,
+        string? statusText = null)
+        => new()
+        {
+            Id = id,
+            AccountId = accountId,
+            InternalWONumber = $"2000000{id:0000}",
+            AssignTo = assignTo,
+            ScheduledDate = scheduled,
+            ScheduleWeekOnly = targetWeek.HasValue,
+            TargetWeek = targetWeek,
+            LifecycleStatus = status,
+            LegacyStatus = legacyStatus,
+            Status = statusText,
+            istemplate = false
+        };
+
+    // Rows written by legacy create paths, which set Status but no LifecycleStatus.
+    private static void SeedLegacy(ApplicationDbContext ctx)
+    {
+        var inRange = new DateTime(2026, 9, 22);
+        ctx.workOrders.AddRange(
+            Wo(13, inRange, status: null, statusText: "Open"),                        // counted
+            Wo(14, inRange, status: null, statusText: "On Hold"),                     // counted: Pending
+            Wo(15, inRange, status: null),                                            // counted: no status at all
+            Wo(16, inRange, status: null, legacyStatus: "Done", statusText: "Open"),  // closed: LegacyStatus wins
+            Wo(17, inRange, status: null, statusText: " Cancelled "),                 // canceled
+            Wo(18, inRange, assignTo: "disp-1", status: null, statusText: "Open"),    // assigned
+            Wo(19, inRange, status: null, legacyStatus: "Open", statusText: "Done")); // counted: LegacyStatus wins
+        ctx.SaveChanges();
+    }
+
+    private static void Seed(ApplicationDbContext ctx)
+    {
+        ctx.workOrders.AddRange(
+            Wo(1, new DateTime(2026, 9, 22)),                                   // counted
+            Wo(2, new DateTime(2026, 9, 23), assignTo: ""),                     // counted: blank assignee
+            Wo(3, null, targetWeek: new DateOnly(2026, 9, 21)),                 // counted: week-only in range
+            Wo(4, new DateTime(2026, 9, 24), assignTo: "disp-1"),               // assigned
+            Wo(5, new DateTime(2026, 9, 24), status: LifecycleStatus.Completed),
+            Wo(6, new DateTime(2026, 9, 24), status: LifecycleStatus.Canceled),
+            Wo(7, new DateTime(2026, 8, 4)),                                    // out of range
+            Wo(8, null, status: LifecycleStatus.Incomplete),                    // undated
+            Wo(9, new DateTime(2026, 9, 22), accountId: 2),                     // other tenant
+            Wo(10, null, status: LifecycleStatus.Incomplete, accountId: 2));    // other tenant, undated
+        ctx.SaveChanges();
+    }
+
+    [Fact]
+    public async Task GetStatsAsync_Range_CountsOpenUnassignedScheduledInPeriod()
+    {
+        using var ctx = NewContext();
+        Seed(ctx);
+
+        var stats = await NewDashboard(ctx).GetStatsAsync(
+            AccountUser(1), new DashboardStatsQueryDTO { DateFrom = From, DateTo = To }, CancellationToken.None);
+
+        stats.Unassigned.Should().Be(3);
+    }
+
+    [Fact]
+    public async Task GetStatsAsync_AllTime_CountsEveryOpenUnassignedIncludingUndated()
+    {
+        using var ctx = NewContext();
+        Seed(ctx);
+
+        var stats = await NewDashboard(ctx).GetStatsAsync(
+            AccountUser(1), new DashboardStatsQueryDTO(), CancellationToken.None);
+
+        // 1, 2, 3, 7 (out of any week but open) and 8 (undated).
+        stats.Unassigned.Should().Be(5);
+    }
+
+    [Fact]
+    public async Task GetStatsAsync_CountsOpenLegacyRowsWithNoLifecycleStatus()
+    {
+        using var ctx = NewContext();
+        Seed(ctx);
+        SeedLegacy(ctx);
+
+        var inRange = await NewDashboard(ctx).GetStatsAsync(
+            AccountUser(1), new DashboardStatsQueryDTO { DateFrom = From, DateTo = To }, CancellationToken.None);
+        var allTime = await NewDashboard(ctx).GetStatsAsync(
+            AccountUser(1), new DashboardStatsQueryDTO(), CancellationToken.None);
+
+        // 1, 2, 3 plus legacy 13, 14, 15 and 19.
+        inRange.Unassigned.Should().Be(7);
+        allTime.Unassigned.Should().Be(9);
+    }
+
+    [Fact]
+    public async Task BoardSearch_StatusFilter_MatchesLegacyRowsByTheirLegacyStatus()
+    {
+        using var ctx = NewContext();
+        var inRange = new DateTime(2026, 9, 22);
+        ctx.workOrders.AddRange(
+            Wo(1, inRange),
+            Wo(2, inRange, status: null, statusText: "scheduled"),
+            Wo(3, inRange, status: null, statusText: "Open"),
+            Wo(4, inRange, status: null, statusText: "Legacy Mystery"),
+            Wo(5, inRange, status: null));
+        ctx.SaveChanges();
+        var user = AccountUser(1);
+
+        async Task<IEnumerable<int>> Ids(LifecycleStatus status)
+            => (await NewSearch(ctx).SearchAsync(new WorkOrderAdvancedSearchQueryDto
+            {
+                DatePreset = WorkOrderAdvancedSearchDatePreset.Custom,
+                DateFrom = From,
+                DateTo = To,
+                Statuses = new List<LifecycleStatus> { status },
+                PageSize = 200
+            }, user, "admin-1")).Items.Select(row => row.Id);
+
+        (await Ids(LifecycleStatus.Scheduled)).Should().BeEquivalentTo(new[] { 1, 2 });
+        // Unknown or missing legacy text reads as Incomplete, as the Phase0 backfill set it.
+        (await Ids(LifecycleStatus.Incomplete)).Should().BeEquivalentTo(new[] { 3, 4, 5 });
+        (await Ids(LifecycleStatus.Completed)).Should().BeEmpty();
+    }
+
+    [Fact]
+    public async Task GetStatsAsync_Unassigned_NeverCountsAnotherTenantsWorkOrders()
+    {
+        using var ctx = NewContext();
+        Seed(ctx);
+
+        var accountTwo = await NewDashboard(ctx).GetStatsAsync(
+            AccountUser(2), new DashboardStatsQueryDTO(), CancellationToken.None);
+        var accountTwoInRange = await NewDashboard(ctx).GetStatsAsync(
+            AccountUser(2), new DashboardStatsQueryDTO { DateFrom = From, DateTo = To }, CancellationToken.None);
+
+        accountTwo.Unassigned.Should().Be(2);
+        accountTwoInRange.Unassigned.Should().Be(1);
+    }
+
+    [Fact]
+    public async Task GetStatsAsync_DispatcherScope_HasNoUnassignedWork()
+    {
+        using var ctx = NewContext();
+        Seed(ctx);
+
+        var dispatcher = await NewDashboard(ctx).GetStatsAsync(
+            AccountUser(1, role: "Dispatcher", userId: "disp-1"),
+            new DashboardStatsQueryDTO(),
+            CancellationToken.None);
+        var adminPickingDispatcher = await NewDashboard(ctx).GetStatsAsync(
+            AccountUser(1),
+            new DashboardStatsQueryDTO { DispatcherId = "disp-1" },
+            CancellationToken.None);
+
+        dispatcher.Unassigned.Should().Be(0);
+        adminPickingDispatcher.Unassigned.Should().Be(0);
+    }
+
+    [Theory]
+    [InlineData(true)]
+    [InlineData(false)]
+    public async Task GetStatsAsync_UnassignedMatchesTheDrillDownList(bool withRange)
+    {
+        using var ctx = NewContext();
+        Seed(ctx);
+        SeedLegacy(ctx);
+        // Dated outside the board's all-weeks window: neither side may count them.
+        ctx.workOrders.AddRange(Wo(11, new DateTime(1999, 12, 31)), Wo(12, new DateTime(2100, 1, 1)));
+        ctx.SaveChanges();
+        var user = AccountUser(1);
+
+        var stats = await NewDashboard(ctx).GetStatsAsync(
+            user,
+            withRange ? new DashboardStatsQueryDTO { DateFrom = From, DateTo = To } : new DashboardStatsQueryDTO(),
+            CancellationToken.None);
+
+        // What the Work Orders board sends for the tile's drill-down link.
+        var list = await NewSearch(ctx).SearchAsync(new WorkOrderAdvancedSearchQueryDto
+        {
+            DatePreset = WorkOrderAdvancedSearchDatePreset.Custom,
+            DateFrom = withRange ? From : new DateOnly(2000, 1, 1),
+            DateTo = withRange ? To : new DateOnly(2099, 12, 31),
+            IncludeDateless = !withRange,
+            Dispatchers = new List<string> { "__unassigned__" },
+            Statuses = OpenStatuses,
+            PageSize = 200
+        }, user, "admin-1");
+
+        stats.Unassigned.Should().Be(list.TotalCount);
+        var listed = list.Items.Select(row => row.Id).ToList();
+        listed.Should().Contain(new[] { 13, 14, 15, 19 });
+        listed.Should().NotContain(new[] { 16, 17, 18 });
+    }
+}
diff --git a/Api.SeaHavenIndustries/Controllers/DashboardController.cs b/Api.SeaHavenIndustries/Controllers/DashboardController.cs
index b53c4bf..e40c9fd 100644
--- a/Api.SeaHavenIndustries/Controllers/DashboardController.cs
+++ b/Api.SeaHavenIndustries/Controllers/DashboardController.cs
@@ -33,6 +33,7 @@ namespace Api.SeaHavenIndustries.Controllers
                 scheduledTomorrow = stats.ScheduledTomorrow,
                 pendingUplifts = stats.PendingUplifts,
                 avetaPending = stats.AvetaPending,
+                unassigned = stats.Unassigned,
                 breakdown = stats.Breakdown,
                 dueCount = stats.DueCount,
                 completedDueCount = stats.CompletedDueCount,
diff --git a/SeaHaven.DataServices/Helpers/WorkOrderBoardQueryFilters.cs b/SeaHaven.DataServices/Helpers/WorkOrderBoardQueryFilters.cs
index b665f2c..583aaa2 100644
--- a/SeaHaven.DataServices/Helpers/WorkOrderBoardQueryFilters.cs
+++ b/SeaHaven.DataServices/Helpers/WorkOrderBoardQueryFilters.cs
@@ -5,6 +5,14 @@ namespace SeaHaven.DataServices.Helpers
 {
     public static class WorkOrderBoardQueryFilters
     {
+        /// <summary>
+        /// The window the Work Orders board searches when no date range is selected
+        /// (client ADVANCED_SEARCH_ALL_WEEKS_FROM/TO), used with includeDateless.
+        /// Counts that drill into that list use it too, so both see the same rows.
+        /// </summary>
+        public static readonly DateOnly AllWeeksFrom = new(2000, 1, 1);
+        public static readonly DateOnly AllWeeksTo = new(2099, 12, 31);
+
         public static IQueryable<WorkOrder> ApplyBaseScope(IQueryable<WorkOrder> query)
             => query.Where(w => w.istemplate != true && (w.IsDeleted != true || w.IsDeleted == null));
 
@@ -155,6 +163,44 @@ namespace SeaHaven.DataServices.Helpers
                     || !WorkOrderBoardRegions.KnownStorageValues.Contains(w.Locations.State))));
         }
 
+        /// <summary>
+        /// Lower-cased legacy status text and the lifecycle status it stands for:
+        /// the Phase0 backfill rules, kept equal to LifecycleStatusMapper.FromLegacyStatus.
+        /// </summary>
+        public static readonly IReadOnlyDictionary<string, LifecycleStatus> LegacyStatusValues =
+            new Dictionary<string, LifecycleStatus>(StringComparer.Ordinal)
+            {
+                ["open"] = LifecycleStatus.Incomplete,
+                ["incomplete"] = LifecycleStatus.Incomplete,
+                ["pending"] = LifecycleStatus.Pending,
+                ["onhold"] = LifecycleStatus.Pending,
+                ["on hold"] = LifecycleStatus.Pending,
+                ["scheduled"] = LifecycleStatus.Scheduled,
+                ["en route"] = LifecycleStatus.EnRoute,
+                ["enroute"] = LifecycleStatus.EnRoute,
+                ["on site"] = LifecycleStatus.OnSite,
+                ["onsite"] = LifecycleStatus.OnSite,
+                ["inprogress"] = LifecycleStatus.InProgress,
+                ["in progress"] = LifecycleStatus.InProgress,
+                ["completed"] = LifecycleStatus.Completed,
+                ["complete"] = LifecycleStatus.Completed,
+                ["done"] = LifecycleStatus.Completed,
+                ["closed"] = LifecycleStatus.Completed,
+                ["rescheduled"] = LifecycleStatus.Rescheduled,
+                ["cancelled"] = LifecycleStatus.Canceled,
+                ["canceled"] = LifecycleStatus.Canceled,
+                ["pending quote"] = LifecycleStatus.PendingQuote,
+                ["pendingquote"] = LifecycleStatus.PendingQuote,
+                ["pendingapproval"] = LifecycleStatus.PendingQuote,
+                ["pending approval"] = LifecycleStatus.PendingQuote,
+            };
+
+        /// <summary>
+        /// Keeps rows in <paramref name="statuses"/>. Rows with no LifecycleStatus
+        /// (legacy create paths still write only Status) match by their legacy
+        /// status, read as the Phase0 backfill does: known text maps through
+        /// <see cref="LegacyStatusValues"/>, anything else, blank included, is Incomplete.
+        /// </summary>
         public static IQueryable<WorkOrder> ApplyStatusFilter(
             IQueryable<WorkOrder> query,
             IReadOnlyList<LifecycleStatus>? statuses)
@@ -162,7 +208,22 @@ namespace SeaHaven.DataServices.Helpers
             if (statuses == null || statuses.Count == 0)
                 return query;
 
-            return query.Where(w => w.LifecycleStatus != null && statuses.Contains(w.LifecycleStatus.Value));
+            var legacyValues = LegacyStatusValues
+                .Where(entry => statuses.Contains(entry.Value))
+                .Select(entry => entry.Key)
+                .ToList();
+            var knownLegacyValues = LegacyStatusValues.Keys.ToList();
+            var includeUnknownLegacy = statuses.Contains(LifecycleStatus.Incomplete);
+
+            // Null check before Trim(): EF translates it, the in-memory provider runs it.
+            return query.Where(w =>
+                (w.LifecycleStatus != null && statuses.Contains(w.LifecycleStatus.Value))
+                || (w.LifecycleStatus == null
+                    && (((w.LegacyStatus ?? w.Status) != null
+                            && legacyValues.Contains((w.LegacyStatus ?? w.Status)!.Trim().ToLower()))
+                        || (includeUnknownLegacy
+                            && ((w.LegacyStatus ?? w.Status) == null
+                                || !knownLegacyValues.Contains((w.LegacyStatus ?? w.Status)!.Trim().ToLower()))))));
         }
 
         public static IQueryable<WorkOrder> ApplyDocStatusFilter(
diff --git a/SeaHaven.DataServices/Implementation/DashboardDataService.cs b/SeaHaven.DataServices/Implementation/DashboardDataService.cs
index a6c03f2..33957fc 100644
--- a/SeaHaven.DataServices/Implementation/DashboardDataService.cs
+++ b/SeaHaven.DataServices/Implementation/DashboardDataService.cs
@@ -39,6 +39,41 @@ namespace SeaHaven.DataServices.Implementation
             };
         }
 
+        private static readonly IReadOnlyList<LifecycleStatus> OpenLifecycleStatuses = Enum
+            .GetValues<LifecycleStatus>()
+            .Where(s => s != LifecycleStatus.Completed && s != LifecycleStatus.Canceled)
+            .ToList();
+
+        public async Task<int> CountOpenUnassignedAsync(
+            int? accountId,
+            string? dispatcherId,
+            DateOnly? dateFrom,
+            DateOnly? dateTo,
+            CancellationToken cancellationToken)
+        {
+            // A dispatcher-scoped Dashboard has no unassigned work by definition.
+            if (dispatcherId != null)
+                return 0;
+
+            var query = WorkOrderBoardQueryFilters.ApplyBaseScope(_context.workOrders.AsNoTracking());
+            if (accountId is int scopedAccountId)
+                query = WorkOrderBoardQueryFilters.ApplyAccountScope(query, scopedAccountId);
+            query = WorkOrderBoardQueryFilters.ApplyDispatcherFilter(
+                query, new[] { "__unassigned__" }, myWorkOrders: false, currentUserId: null);
+            query = WorkOrderBoardQueryFilters.ApplyStatusFilter(query, OpenLifecycleStatuses);
+            // All time counts what the board lists with no range: every week plus
+            // undated work, so the tile and its drill-down agree.
+            query = dateFrom is DateOnly from && dateTo is DateOnly to
+                ? WorkOrderBoardQueryFilters.ApplyDateRangeFilter(query, from, to)
+                : WorkOrderBoardQueryFilters.ApplyDateRangeFilter(
+                    query,
+                    WorkOrderBoardQueryFilters.AllWeeksFrom,
+                    WorkOrderBoardQueryFilters.AllWeeksTo,
+                    includeDateless: true);
+
+            return await query.CountAsync(cancellationToken);
+        }
+
         public async Task<IReadOnlyList<DashboardWorkOrder>> GetDashboardWorkOrdersAsync(
             int? accountId,
             string? dispatcherId,
diff --git a/SeaHaven.DataServices/Interfaces/IDashboardDataService.cs b/SeaHaven.DataServices/Interfaces/IDashboardDataService.cs
index 51ef7b5..ee1932d 100644
--- a/SeaHaven.DataServices/Interfaces/IDashboardDataService.cs
+++ b/SeaHaven.DataServices/Interfaces/IDashboardDataService.cs
@@ -14,6 +14,18 @@ namespace SeaHaven.DataServices.Interfaces
             DateOnly today,
             CancellationToken cancellationToken);
 
+        /// <summary>
+        /// Open work orders with no dispatcher in the period, counted with the
+        /// same filters as GET /board/search for Dispatcher=Unassigned,
+        /// so the Dashboard number matches the list it drills into.
+        /// </summary>
+        Task<int> CountOpenUnassignedAsync(
+            int? accountId,
+            string? dispatcherId,
+            DateOnly? dateFrom,
+            DateOnly? dateTo,
+            CancellationToken cancellationToken);
+
         Task<IReadOnlyList<DashboardWorkOrder>> GetDashboardWorkOrdersAsync(
             int? accountId,
             string? dispatcherId,
diff --git a/SeaHaven.Services/DTOs/DashboardDTOs.cs b/SeaHaven.Services/DTOs/DashboardDTOs.cs
index 9cf76c0..7e4438f 100644
--- a/SeaHaven.Services/DTOs/DashboardDTOs.cs
+++ b/SeaHaven.Services/DTOs/DashboardDTOs.cs
@@ -106,6 +106,8 @@ namespace SeaHaven.Services.DTOs
         public int ScheduledTomorrow { get; set; }
         public int PendingUplifts { get; set; }
         public int AvetaPending { get; set; }
+        /// <summary>Open work orders with no dispatcher in the selected period.</summary>
+        public int Unassigned { get; set; }
         public DashboardBreakdownDTO Breakdown { get; set; } = new();
         public int DueCount { get; set; }
         public int CompletedDueCount { get; set; }
diff --git a/SeaHaven.Services/Implementation/DashboardService.cs b/SeaHaven.Services/Implementation/DashboardService.cs
index 02642dc..e528b97 100644
--- a/SeaHaven.Services/Implementation/DashboardService.cs
+++ b/SeaHaven.Services/Implementation/DashboardService.cs
@@ -43,6 +43,12 @@ namespace SeaHaven.Services.Implementation
                 query.DateTo,
                 cancellationToken);
             var metrics = DashboardMetrics.Calculate(workOrders, DashboardBusinessTime.Today());
+            var unassigned = await _dataService.CountOpenUnassignedAsync(
+                accountId,
+                dispatcherId,
+                query.DateFrom,
+                query.DateTo,
+                cancellationToken);
 
             var useMetrics = query.DateFrom.HasValue && query.DateTo.HasValue || dispatcherId is not null;
 
@@ -55,6 +61,7 @@ namespace SeaHaven.Services.Implementation
                 ScheduledTomorrow = kpis.ScheduledTomorrow,
                 PendingUplifts = kpis.PendingUplifts,
                 AvetaPending = kpis.AvetaPending,
+                Unassigned = unassigned,
                 Breakdown = metrics.Breakdown,
                 DueCount = metrics.DueCount,
                 CompletedDueCount = metrics.CompletedDueCount,
diff --git a/SeaHavenIndustries.Tests/LifecycleStatusMapperTests.cs b/SeaHavenIndustries.Tests/LifecycleStatusMapperTests.cs
index 0a06141..5e0149f 100644
--- a/SeaHavenIndustries.Tests/LifecycleStatusMapperTests.cs
+++ b/SeaHavenIndustries.Tests/LifecycleStatusMapperTests.cs
@@ -1,4 +1,5 @@
 using Data.SeaHavenIndustries.Enums;
+using SeaHaven.DataServices.Helpers;
 using SeaHaven.Services.Constants;
 using SeaHaven.Services.Helpers;
 
@@ -30,6 +31,48 @@ public class LifecycleStatusMapperTests
         Assert.Null(result);
     }
 
+    // Every value FromLegacyStatus recognizes: the board's status filter reads
+    // rows with no LifecycleStatus through its own copy of this table.
+    [Theory]
+    [InlineData("open")]
+    [InlineData("incomplete")]
+    [InlineData("pending")]
+    [InlineData("onhold")]
+    [InlineData("on hold")]
+    [InlineData("scheduled")]
+    [InlineData("en route")]
+    [InlineData("enroute")]
+    [InlineData("on site")]
+    [InlineData("onsite")]
+    [InlineData("inprogress")]
+    [InlineData("in progress")]
+    [InlineData("completed")]
+    [InlineData("complete")]
+    [InlineData("done")]
+    [InlineData("closed")]
+    [InlineData("rescheduled")]
+    [InlineData("cancelled")]
+    [InlineData("canceled")]
+    [InlineData("pending quote")]
+    [InlineData("pendingquote")]
+    [InlineData("pendingapproval")]
+    [InlineData("pending approval")]
+    public void BoardStatusFilterLegacyTable_AgreesWithFromLegacyStatus(string legacy)
+    {
+        Assert.Equal(
+            LifecycleStatusMapper.FromLegacyStatus(legacy),
+            WorkOrderBoardQueryFilters.LegacyStatusValues[legacy]);
+    }
+
+    [Fact]
+    public void BoardStatusFilterLegacyTable_HasNoValueTheMapperRejects()
+    {
+        Assert.Equal(23, WorkOrderBoardQueryFilters.LegacyStatusValues.Count);
+        Assert.All(
+            WorkOrderBoardQueryFilters.LegacyStatusValues,
+            entry => Assert.Equal(entry.Value, LifecycleStatusMapper.FromLegacyStatus(entry.Key)));
+    }
+
     [Theory]
     [InlineData(LifecycleStatus.EnRoute, "En Route")]
     [InlineData(LifecycleStatus.PendingQuote, "Pending Quote")]