diff --git a/src/domain/work-orders/mappers/work-order-table-row-mapper.ts b/src/domain/work-orders/mappers/work-order-table-row-mapper.ts
index 3b9fc66b..ab226518 100644
--- a/src/domain/work-orders/mappers/work-order-table-row-mapper.ts
+++ b/src/domain/work-orders/mappers/work-order-table-row-mapper.ts
@@ -177,23 +177,25 @@ function readFlagColor(record: Record<string, unknown>): string | null {
 
 function readUpliftSummary(item: Record<string, unknown>): WorkOrderUpliftSummary | undefined {
   const nested = asRecord(item.upliftSummary ?? item.UpliftSummary);
-  const source = Object.keys(nested).length > 0 ? nested : item;
+  const hasNested = Object.keys(nested).length > 0;
+  const source = hasNested ? nested : item;
 
-  const pendingCount =
-    readNumber(source, "pendingCount", "PendingCount") ??
-    readNumber(item, "pendingUpliftCount", "PendingUpliftCount") ??
-    0;
+  // Board/search/detail contract (SH-188): pendingUpliftCount is authoritative when present.
+  const boardCount = readNumber(item, "pendingUpliftCount", "PendingUpliftCount");
+  const nestedCount = readNumber(source, "pendingCount", "PendingCount");
+  const pendingCount = nestedCount ?? boardCount ?? 0;
   const hasUplift =
     readBool(source, "hasUplift", "HasUplift") ||
     readBool(item, "hasUplift", "HasUplift") ||
     pendingCount > 0;
 
-  if (!hasUplift && pendingCount === 0) {
+  // No nested summary and no board count → omit (legacy payloads without the contract field).
+  if (!hasNested && boardCount == null && !hasUplift) {
     return undefined;
   }
 
   const summary: WorkOrderUpliftSummary = {
-    hasUplift,
+    hasUplift: hasUplift || pendingCount > 0,
     pendingCount,
   };
   const primaryStatus = readString(source, "primaryStatus", "PrimaryStatus", "status", "Status");
@@ -207,11 +209,15 @@ function readHasPendingUplift(
   item: Record<string, unknown>,
   upliftSummary: WorkOrderUpliftSummary | undefined,
 ): boolean | undefined {
-  if (readBool(item, "hasPendingUplift", "HasPendingUplift")) {
-    return true;
+  if ("hasPendingUplift" in item || "HasPendingUplift" in item) {
+    return Boolean(item.hasPendingUplift ?? item.HasPendingUplift);
   }
-  if ((upliftSummary?.pendingCount ?? 0) > 0) {
-    return true;
+  const boardCount = readNumber(item, "pendingUpliftCount", "PendingUpliftCount");
+  if (boardCount != null) {
+    return boardCount > 0;
+  }
+  if (upliftSummary != null) {
+    return upliftSummary.pendingCount > 0;
   }
   return undefined;
 }
diff --git a/src/domain/work-orders/types/work-order-board.ts b/src/domain/work-orders/types/work-order-board.ts
index 021fe1c0..fec033b8 100644
--- a/src/domain/work-orders/types/work-order-board.ts
+++ b/src/domain/work-orders/types/work-order-board.ts
@@ -159,9 +159,16 @@ export interface WorkOrderBoardRowApi {
   serviceNotes?: string | null;
   extraServices?: string[] | null;
   docStatus?: number | null;
+  /** Work completed date from board/detail contract. */
+  completedDate?: string | null;
   primaryDispatchId?: number | null;
   rowVersion?: string | null;
   dispatchRowVersion?: string | null;
+  /**
+   * Authoritative pending-uplift count across all dispatches for this WO (SH-188 / BE board contract).
+   * Drives the Completed closability gate.
+   */
+  pendingUpliftCount?: number;
 }
 
 export interface WorkOrderBoardCountsApi {
diff --git a/src/domain/work-orders/utils/wo-closability.ts b/src/domain/work-orders/utils/wo-closability.ts
index 7259cbf5..388d0e02 100644
--- a/src/domain/work-orders/utils/wo-closability.ts
+++ b/src/domain/work-orders/utils/wo-closability.ts
@@ -25,9 +25,9 @@ export type WoClosabilityInput = {
 
 export const PENDING_UPLIFT_GAP = "Pending uplift approval";
 
-/** Design copy when Completed is blocked solely by a pending uplift. */
+/** SH-188 tooltip when Completed is blocked solely by a pending uplift. */
 export const UPLIFT_PENDING_COMPLETED_TITLE =
-  "This work order cannot be completed while an uplift is pending approval.";
+  "This work order has an uplift pending approval and cannot be completed.";
 
 /** Real (non-placeholder) WO number — non-empty and not an SH-prefixed draft id. */
 export function isRealWoNumber(woNumber: string): boolean {
@@ -83,7 +83,8 @@ export function getClosabilityGaps(row: WoClosabilityInput): string[] {
     gaps.push("Service");
   }
 
-  // Only an actually pending uplift blocks completion; missing uplift fields mean no pending evidence.
+  // Authoritative pending uplift (board pendingUpliftCount / hasPendingUplift) blocks completion.
+  // Missing uplift fields mean no pending evidence until the board contract supplies the count.
   if (hasPendingUplift(row)) {
     gaps.push(PENDING_UPLIFT_GAP);
   }
diff --git a/src/test/app/(protected)/workorders/status-cell-pending-uplift.test.tsx b/src/test/app/(protected)/workorders/status-cell-pending-uplift.test.tsx
index 998b2680..5d610390 100644
--- a/src/test/app/(protected)/workorders/status-cell-pending-uplift.test.tsx
+++ b/src/test/app/(protected)/workorders/status-cell-pending-uplift.test.tsx
@@ -71,13 +71,38 @@ describe("StatusCell pending uplift closability", () => {
     expect(completed).toBeDisabled();
     expect(completed).toHaveAttribute(
       "title",
-      "This work order cannot be completed while an uplift is pending approval.",
+      "This work order has an uplift pending approval and cannot be completed.",
     );
 
     fireEvent.click(completed);
     expect(onChangeStatus).not.toHaveBeenCalled();
   });
 
+  it("disables Completed with tooltip when board pendingUpliftCount maps to pending", () => {
+    const onChangeStatus = vi.fn();
+
+    renderWithProviders(
+      <StatusCell
+        wo={makeRow({
+          hasPendingUplift: true,
+          upliftSummary: { hasUplift: true, pendingCount: 1 },
+        })}
+        onChangeStatus={onChangeStatus}
+        onOpenSlideOver={vi.fn()}
+      />,
+      { withAuth: false },
+    );
+
+    fireEvent.click(screen.getByRole("button", { name: /in progress/i }));
+
+    const completed = screen.getByRole("button", { name: /completed/i });
+    expect(completed).toBeDisabled();
+    expect(completed).toHaveAttribute(
+      "title",
+      "This work order has an uplift pending approval and cannot be completed.",
+    );
+  });
+
   it("allows Completed when no pending uplift", () => {
     const onChangeStatus = vi.fn();
 
diff --git a/src/test/domain/work-orders/mappers/work-order-mapper.test.ts b/src/test/domain/work-orders/mappers/work-order-mapper.test.ts
index 1b3baa4e..2a33a51c 100644
--- a/src/test/domain/work-orders/mappers/work-order-mapper.test.ts
+++ b/src/test/domain/work-orders/mappers/work-order-mapper.test.ts
@@ -154,6 +154,28 @@ describe("mapWorkOrderTableRow (board DTO)", () => {
     expect(row.hasPendingUplift).toBe(true);
   });
 
+  it("maps board pendingUpliftCount into hasPendingUplift (SH-188 contract)", () => {
+    const pending = mapWorkOrderTableRow({
+      id: 305,
+      pendingUpliftCount: 1,
+    });
+    expect(pending.hasPendingUplift).toBe(true);
+    expect(pending.upliftSummary).toEqual({ hasUplift: true, pendingCount: 1 });
+
+    const clear = mapWorkOrderTableRow({
+      id: 306,
+      PendingUpliftCount: 0,
+    });
+    expect(clear.hasPendingUplift).toBe(false);
+    expect(clear.upliftSummary).toEqual({ hasUplift: false, pendingCount: 0 });
+  });
+
+  it("leaves hasPendingUplift undefined when board count is absent", () => {
+    const row = mapWorkOrderTableRow({ id: 307 });
+    expect(row.hasPendingUplift).toBeUndefined();
+    expect(row.upliftSummary).toBeUndefined();
+  });
+
   it("maps hasPendingUplift from top-level API flag", () => {
     const row = mapWorkOrderTableRow({
       id: 304,