diff --git a/src/app/(protected)/workorders/_components/wizard/wizard-step-location-service-select.tsx b/src/app/(protected)/workorders/_components/wizard/wizard-step-location-service-select.tsx
index 71d6ace7..0acc1014 100644
--- a/src/app/(protected)/workorders/_components/wizard/wizard-step-location-service-select.tsx
+++ b/src/app/(protected)/workorders/_components/wizard/wizard-step-location-service-select.tsx
@@ -28,18 +28,14 @@ export function WizardStepLocationServiceSelect({
   onUpdate,
   onPatch,
 }: WizardStepLocationServiceSelectProps) {
-  const svcSel = [draft.pm, ...draft.extraServices].filter((p, i, a) => !!p && a.indexOf(p) === i);
-
   const clearVendorIfPrimaryChanged = (nextPm: string): Partial<WorkOrderWizardDraft> =>
     nextPm !== draft.pm ? { vendorId: "", vendorName: "", techPhone: "" } : {};
 
-  const toggleSvc = (p: string) => {
-    const next = svcSel.includes(p) ? svcSel.filter((x) => x !== p) : [...svcSel, p];
-    const nextPm = next[0] ?? "";
+  const selectSvc = (p: string) => {
     onPatch({
-      pm: nextPm,
-      extraServices: next.slice(1),
-      ...clearVendorIfPrimaryChanged(nextPm),
+      pm: p,
+      extraServices: [],
+      ...clearVendorIfPrimaryChanged(p),
     });
   };
 
@@ -63,13 +59,7 @@ export function WizardStepLocationServiceSelect({
             ),
           };
         })}
-        onPick={(p) =>
-          onPatch({
-            pm: p,
-            extraServices: draft.extraServices.filter((x) => x !== p),
-            ...clearVendorIfPrimaryChanged(p),
-          })
-        }
+        onPick={selectSvc}
       />
       {!svcOpen ? (
         <button
@@ -95,8 +85,8 @@ export function WizardStepLocationServiceSelect({
         >
           <WizardServiceNotesFields
             services={services}
-            sel={svcSel}
-            onToggle={toggleSvc}
+            sel={draft.pm ? [draft.pm] : []}
+            onToggle={selectSvc}
             note={draft.pmNote}
             setNote={(v) => onUpdate("pmNote", v)}
             search={svcSearch}
diff --git a/src/domain/work-orders/mappers/assign-wizard-service-poc-fields.ts b/src/domain/work-orders/mappers/assign-wizard-service-poc-fields.ts
index 66d906bd..cdac7c9b 100644
--- a/src/domain/work-orders/mappers/assign-wizard-service-poc-fields.ts
+++ b/src/domain/work-orders/mappers/assign-wizard-service-poc-fields.ts
@@ -7,42 +7,7 @@ function trimOrUndefined(value: string | undefined): string | undefined {
   return trimmed ? trimmed : undefined;
 }
 
-function normalizeExtraServices(
-  primary: string | undefined,
-  extras: string[],
-): string[] | undefined {
-  if (extras.length === 0) {
-    return undefined;
-  }
-
-  const seen = new Set<string>();
-
-  const primaryKey = primary?.toLowerCase() ?? "";
-
-  const out: string[] = [];
-
-  for (const raw of extras) {
-    const trimmed = raw.trim();
-
-    if (!trimmed) {
-      continue;
-    }
-
-    const key = trimmed.toLowerCase();
-
-    if (key === primaryKey || seen.has(key)) {
-      continue;
-    }
-
-    seen.add(key);
-
-    out.push(trimmed);
-  }
-
-  return out.length > 0 ? out : undefined;
-}
-
-/** Mutates `payload` with primary/extra services, service notes, POC, tech phone, and vendor notes. */
+/** Mutates `payload` with primary service, service notes, POC, tech phone, and vendor notes. */
 export function assignWizardServicePocFields(
   payload: WorkOrderBoardCreatePayload,
   draft: WorkOrderWizardDraft,
@@ -53,12 +18,6 @@ export function assignWizardServicePocFields(
     payload.primaryService = primaryService;
   }
 
-  const extraServices = normalizeExtraServices(primaryService, draft.extraServices);
-
-  if (extraServices) {
-    payload.extraServices = extraServices;
-  }
-
   const serviceNotes = trimOrUndefined(draft.pmNote);
 
   if (serviceNotes) {
diff --git a/src/test/app/(protected)/workorders/wizard-service-clears-vendor.test.tsx b/src/test/app/(protected)/workorders/wizard-service-clears-vendor.test.tsx
index 31007cda..3812fb63 100644
--- a/src/test/app/(protected)/workorders/wizard-service-clears-vendor.test.tsx
+++ b/src/test/app/(protected)/workorders/wizard-service-clears-vendor.test.tsx
@@ -39,10 +39,50 @@ describe("WizardStepLocationServiceSelect — vendor clear on service change", (
     expect(onPatch).toHaveBeenCalledWith(
       expect.objectContaining({
         pm: "Plumbing",
+        extraServices: [],
         vendorId: "",
         vendorName: "",
         techPhone: "",
       }),
     );
   });
+
+  it("replaces the selected service in Service & Notes without persisting extraServices", () => {
+    const onPatch = vi.fn();
+    const draft: WorkOrderWizardDraft = {
+      ...EMPTY_WIZARD_DRAFT,
+      pm: "HVAC",
+      extraServices: ["Plumbing"],
+      vendorId: "9",
+      vendorName: "Old Vendor",
+      techPhone: "555-0100",
+    };
+
+    render(
+      <WizardStepLocationServiceSelect
+        draft={draft}
+        services={[
+          { id: "1", value: "HVAC" },
+          { id: "2", value: "Plumbing" },
+          { id: "3", value: "Electrical" },
+        ]}
+        svcOpen={true}
+        onSvcOpenChange={vi.fn()}
+        svcSearch=""
+        onSvcSearchChange={vi.fn()}
+        onUpdate={vi.fn()}
+        onPatch={onPatch}
+      />,
+    );
+
+    fireEvent.click(screen.getByRole("button", { name: "Electrical" }));
+
+    expect(onPatch).toHaveBeenCalledWith({
+      pm: "Electrical",
+      extraServices: [],
+      vendorId: "",
+      vendorName: "",
+      techPhone: "",
+    });
+  });
 });
diff --git a/src/test/domain/work-orders/mappers/work-order-board-mapper.test.ts b/src/test/domain/work-orders/mappers/work-order-board-mapper.test.ts
index fcb12c9a..b88fa7e7 100644
--- a/src/test/domain/work-orders/mappers/work-order-board-mapper.test.ts
+++ b/src/test/domain/work-orders/mappers/work-order-board-mapper.test.ts
@@ -122,8 +122,6 @@ describe("mapWizardDraftToBoardCreatePayload", () => {
 
       primaryService: "HVAC PM",
 
-      extraServices: ["Filter change", "Coil clean"],
-
       serviceNotes: "Check unit on roof",
 
       pocName: "Jane Site Lead",
@@ -141,6 +139,8 @@ describe("mapWizardDraftToBoardCreatePayload", () => {
 
     expect(payload.trade).toBeUndefined();
 
+    expect(payload.extraServices).toBeUndefined();
+
     expect(payload.description).toBeUndefined();
 
     expect(payload.scheduleWeekOnly).toBeUndefined();
@@ -294,7 +294,7 @@ describe("mapWizardDraftToBoardCreatePayload", () => {
     expect(payload.vendorNotes).toBe("Also not in description");
   });
 
-  it("maps service notes and extras as structured fields instead of description", () => {
+  it("maps service notes as structured fields and omits extraServices from wizard create", () => {
     const payload = mapWizardDraftToBoardCreatePayload({
       ...EMPTY_WIZARD_DRAFT,
 
@@ -311,7 +311,7 @@ describe("mapWizardDraftToBoardCreatePayload", () => {
 
     expect(payload.primaryService).toBe("HVAC PM");
 
-    expect(payload.extraServices).toEqual(["Filter change", "Coil clean"]);
+    expect(payload.extraServices).toBeUndefined();
 
     expect(payload.serviceNotes).toBe("Check unit on roof");