diff --git a/src/test/domain/work-orders/mappers/work-order-table-row-mapper.test.ts b/src/test/domain/work-orders/mappers/work-order-table-row-mapper.test.ts
index 970eeff7..74bdc2bb 100644
--- a/src/test/domain/work-orders/mappers/work-order-table-row-mapper.test.ts
+++ b/src/test/domain/work-orders/mappers/work-order-table-row-mapper.test.ts
@@ -84,4 +84,18 @@ describe("mapWorkOrderTableRow primaryDispatchStatus", () => {
     expect(row.company).toBe("");
     expect(row.primaryDispatchStatus).toBe("Sent");
   });
+
+  it("maps vendor PATCH replacement dispatch as Pending with a new primaryDispatchId", () => {
+    const row = mapWorkOrderTableRow({
+      id: 1,
+      VendorId: 5,
+      VendorName: "New Co",
+      PrimaryDispatchStatus: "Pending",
+      PrimaryDispatchId: 11,
+    });
+    expect(row.vendorId).toBe("5");
+    expect(row.company).toBe("New Co");
+    expect(row.primaryDispatchStatus).toBe("Pending");
+    expect(row.primaryDispatchId).toBe(11);
+  });
 });
diff --git a/src/test/domain/work-orders/use-cases/use-work-order-table-mutations.test.tsx b/src/test/domain/work-orders/use-cases/use-work-order-table-mutations.test.tsx
index 6b2b3a64..1f629b09 100644
--- a/src/test/domain/work-orders/use-cases/use-work-order-table-mutations.test.tsx
+++ b/src/test/domain/work-orders/use-cases/use-work-order-table-mutations.test.tsx
@@ -21,6 +21,7 @@ vi.mock("@/domain/work-orders/api/work-orders-api", () => ({
 
 vi.mock("react-toastify", () => ({ toast: { error: vi.fn() } }));
 
+import { mapWorkOrderTableRow } from "@/domain/work-orders/mappers/work-order-table-row-mapper";
 import {
   applySchedulePatch,
   useWorkOrderTableMutations,
@@ -374,13 +375,21 @@ describe("useWorkOrderTableMutations vendor assignment round-trip", () => {
   });
 
   it("keeps Company off the gap list when vendor PATCH returns a Pending assignment", async () => {
-    const returnedRow: WorkOrderTableRow = {
-      ...rowState,
-      vendorId: "9",
-      company: "New Co",
-      primaryDispatchStatus: "Pending",
-      primaryDispatchId: 11,
-    };
+    const returnedRow = mapWorkOrderTableRow({
+      id: 42,
+      VendorId: 9,
+      VendorName: "New Co",
+      PrimaryDispatchStatus: "Pending",
+      PrimaryDispatchId: 11,
+      DispatcherId: "d1",
+      DispatcherName: "Dispatcher",
+      CompletedDate: "2026-07-15",
+      InternalWONumber: "20260623001",
+      PM: "HVAC",
+      DocStatus: "Yes",
+      MediaCount: 1,
+      WorkOrderType: "PM",
+    });
     patchBoardField.mockResolvedValue(returnedRow);
 
     const onPatch = vi.fn();
@@ -409,26 +418,37 @@ describe("useWorkOrderTableMutations vendor assignment round-trip", () => {
     await waitFor(() =>
       expect(onPatch).toHaveBeenCalledWith(
         42,
-        expect.objectContaining({ primaryDispatchStatus: "Pending" }),
+        expect.objectContaining({
+          primaryDispatchStatus: "Pending",
+          primaryDispatchId: 11,
+          vendorId: "9",
+        }),
       ),
     );
 
     expect(patchBoardField).toHaveBeenCalledWith(
       42,
-      expect.objectContaining({ field: "vendorId", value: "9" }),
+      expect.objectContaining({
+        field: "vendorId",
+        value: "9",
+        dispatchVersion: "disp-v1",
+        primaryDispatchId: 10,
+      }),
     );
     const payload = patchBoardField.mock.calls[0]?.[1] as Record<string, unknown>;
     expect(payload).not.toHaveProperty("primaryDispatchStatus");
+    expect(returnedRow.primaryDispatchId).not.toBe(10);
     expect(getClosabilityGaps(tableRowToClosabilityInput(returnedRow))).not.toContain("Company");
   });
 
   it("keeps a Company gap when vendor PATCH still returns Refused", async () => {
-    const returnedRow: WorkOrderTableRow = {
-      ...rowState,
-      vendorId: "9",
-      company: "New Co",
-      primaryDispatchStatus: "Refused",
-    };
+    const returnedRow = mapWorkOrderTableRow({
+      id: 42,
+      VendorId: 9,
+      VendorName: "New Co",
+      PrimaryDispatchStatus: "Refused",
+      PrimaryDispatchId: 10,
+    });
     patchBoardField.mockResolvedValue(returnedRow);
 
     const onPatch = vi.fn();