diff --git a/src/components/AppShell.tsx b/src/components/AppShell.tsx
index ed8e4a6..1a94cb7 100644
--- a/src/components/AppShell.tsx
+++ b/src/components/AppShell.tsx
@@ -18,6 +18,7 @@ const ACTIVITY_META: Record<string, { label: string; icon: React.ReactNode; styl
   [ACTIVITY_IDS.MARK_TEST_DRIVE_DONE]:   { label: "Mark Test Drive Done", icon: <CheckCircle2 size={14} />, style: "primary" },
   [ACTIVITY_IDS.RETRY_SCHEDULING_CALL]:  { label: "Retry Scheduling Call", icon: <RefreshCw size={14} />,   style: "primary" },
   [ACTIVITY_IDS.RETRY_FEEDBACK_CALL]:    { label: "Retry Feedback Call",  icon: <RefreshCw size={14} />,    style: "primary" },
+  [ACTIVITY_IDS.MARK_EXPERT_TD_DONE]:    { label: "Mark Expert TD Done",  icon: <CheckCircle2 size={14} />, style: "primary" },
 };
 
 const BTN_STYLES: Record<string, string> = {
@@ -33,6 +34,7 @@ const STATE_LABEL: Record<string, string> = {
   [STATE_IDS.FEEDBACK_COLLECTED]:       "Feedback Collected",
   [STATE_IDS.SCHEDULING_CALL_FAILED]:   "Scheduling Call Failed",
   [STATE_IDS.FEEDBACK_CALL_FAILED]:     "Feedback Call Failed",
+  [STATE_IDS.EXPERT_TD_SCHEDULED]:      "Expert TD Scheduled",
   [STATE_IDS.END_STATE]:                "Closed",
 };
 
@@ -45,7 +47,7 @@ function stateTone(stateId: string | null) {
     return { bg: "rgba(239,68,68,0.12)", fg: "#B91C1C", ring: "rgba(239,68,68,0.30)" };
   if (stateId === STATE_IDS.AWAITING_SCHEDULER_CALL || stateId === STATE_IDS.AWAITING_FEEDBACK_CALL)
     return { bg: "rgba(200,16,46,0.10)", fg: "#C8102E", ring: "rgba(200,16,46,0.28)" };
-  if (stateId === STATE_IDS.SCHEDULED)
+  if (stateId === STATE_IDS.SCHEDULED || stateId === STATE_IDS.EXPERT_TD_SCHEDULED)
     return { bg: "rgba(245,158,11,0.14)", fg: "#B45309", ring: "rgba(245,158,11,0.30)" };
   return { bg: "rgba(168,162,158,0.15)", fg: "#57534E", ring: "rgba(168,162,158,0.30)" };
 }
@@ -158,6 +160,7 @@ function CurrentAppShell() {
     if (instanceState === STATE_IDS.SCHEDULED)              return [ACTIVITY_IDS.MARK_TEST_DRIVE_DONE];
     if (instanceState === STATE_IDS.SCHEDULING_CALL_FAILED) return [ACTIVITY_IDS.RETRY_SCHEDULING_CALL];
     if (instanceState === STATE_IDS.FEEDBACK_CALL_FAILED)   return [ACTIVITY_IDS.RETRY_FEEDBACK_CALL];
+    if (instanceState === STATE_IDS.EXPERT_TD_SCHEDULED)    return [ACTIVITY_IDS.MARK_EXPERT_TD_DONE];
     return [];
   })();
 
@@ -373,6 +376,8 @@ function fmtAct(id: string): string {
     case ACTIVITY_IDS.AI_CONFIRM_FEEDBACK_COLLECTED:   return "AI · Feedback Collected";
     case ACTIVITY_IDS.AI_CONFIRM_FEEDBACK_FAILED:      return "AI · Feedback Failed";
     case ACTIVITY_IDS.RETRY_FEEDBACK_CALL:             return "Retry Feedback Call";
+    case ACTIVITY_IDS.CONCERN_EXPERT_TD_BOOKED:        return "AI · Concern → Expert TD Booked";
+    case ACTIVITY_IDS.MARK_EXPERT_TD_DONE:             return "Expert TD Completed";
     default: return id.slice(0, 8) + "…";
   }
 }
diff --git a/src/components/variants/VariantB.tsx b/src/components/variants/VariantB.tsx
index 1763586..8502646 100644
--- a/src/components/variants/VariantB.tsx
+++ b/src/components/variants/VariantB.tsx
@@ -60,6 +60,7 @@ const STATE_TONE: Record<string, { bg: string; fg: string; dot: string }> = {
   "Awaiting Scheduler Call":  { bg: "#FEF3C7", fg: "#92400E", dot: "#e6ab2e" },
   "Scheduled":                { bg: "#FEF3C7", fg: "#92400E", dot: "#e6ab2e" },
   "Awaiting Feedback Call":   { bg: "#FEF3C7", fg: "#92400E", dot: "#e6ab2e" },
+  "Expert TD Scheduled":      { bg: "#FEF3C7", fg: "#92400E", dot: "#e6ab2e" },
   "Feedback Collected":       { bg: "#DCFCE7", fg: "#166534", dot: "#27a846" },
   "Scheduling Call Failed":   { bg: ACCENT_SOFT, fg: ACCENT_DARK, dot: ACCENT },
   "Feedback Call Failed":     { bg: ACCENT_SOFT, fg: ACCENT_DARK, dot: ACCENT },
@@ -779,6 +780,7 @@ function DetailPage({
     if (instanceState === STATE_IDS.SCHEDULED)              return [{ id: ACTIVITY_IDS.MARK_TEST_DRIVE_DONE, label: "Mark Test Drive Done", icon: <CheckCircle2 size={14} /> }];
     if (instanceState === STATE_IDS.SCHEDULING_CALL_FAILED) return [{ id: ACTIVITY_IDS.RETRY_SCHEDULING_CALL, label: "Retry Scheduling Call", icon: <RefreshCw size={14} /> }];
     if (instanceState === STATE_IDS.FEEDBACK_CALL_FAILED)   return [{ id: ACTIVITY_IDS.RETRY_FEEDBACK_CALL,   label: "Retry Feedback Call",   icon: <RefreshCw size={14} /> }];
+    if (instanceState === STATE_IDS.EXPERT_TD_SCHEDULED)    return [{ id: ACTIVITY_IDS.MARK_EXPERT_TD_DONE,   label: "Mark Expert TD Done",   icon: <CheckCircle2 size={14} /> }];
     return [];
   }, [instanceState]);
 
@@ -1083,6 +1085,8 @@ const ACTIVITY_LABELS: Record<string, { label: string; tone: "user" | "ai" | "sy
   [ACTIVITY_IDS.AI_CONFIRM_FEEDBACK_COLLECTED]:  { label: "Feedback collected",         tone: "ai" },
   [ACTIVITY_IDS.AI_CONFIRM_FEEDBACK_FAILED]:     { label: "Feedback call failed",       tone: "ai" },
   [ACTIVITY_IDS.RETRY_FEEDBACK_CALL]:            { label: "Retried feedback call",      tone: "user" },
+  [ACTIVITY_IDS.CONCERN_EXPERT_TD_BOOKED]:       { label: "Concern → Expert TD booked", tone: "ai" },
+  [ACTIVITY_IDS.MARK_EXPERT_TD_DONE]:            { label: "Expert TD marked done",      tone: "user" },
 };
 
 const SECTION_TITLE: Record<string, string> = {
diff --git a/src/config.ts b/src/config.ts
index 7119d19..0882d47 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -15,6 +15,8 @@ export const ACTIVITY_IDS = {
   AI_CONFIRM_FEEDBACK_COLLECTED: "a6666666-6666-4abc-8000-000000000006",   // AI submits on feedback success
   AI_CONFIRM_FEEDBACK_FAILED: "a7777777-7777-4abc-8000-000000000007",      // AI submits on feedback failure
   RETRY_FEEDBACK_CALL: "a8888888-8888-4abc-8000-000000000008",             // Re-fire AI from failed feedback
+  CONCERN_EXPERT_TD_BOOKED: "e1111111-1111-4abc-8000-000000000009",        // AI submits when feedback call surfaces concern + expert TD slot booked
+  MARK_EXPERT_TD_DONE: "e2222222-2222-4abc-8000-000000000010",             // Dealer marks the expert/specialist drive complete
 } as const;
 
 export const RECORD_VIEW_IDS = {
@@ -23,6 +25,7 @@ export const RECORD_VIEW_IDS = {
   PENDING_FEEDBACK: "rv-mahindra-pending-feedback",
   COMPLETED: "rv-mahindra-completed",
   SCHEDULED_TEST_DRIVES: "rv-mahindra-scheduled-td",
+  CONCERN_EXPERT_TD: "ab66664a-19e1-45a2-be51-dca0211a8be7",
 } as const;
 
 // rv_uid -> field_keys that should NOT render as table columns even though
@@ -34,6 +37,7 @@ export const RV_HIDDEN_COLUMNS: Record<string, string[]> = {
   "rv-mahindra-scheduled-td":      ["current_state_id"],
   "rv-mahindra-pending-feedback":  ["current_state_id"],
   "rv-mahindra-completed":         ["current_state_id"],
+  "ab66664a-19e1-45a2-be51-dca0211a8be7": ["current_state_id"],
 };
 
 export const DETAIL_VIEW_IDS = {
@@ -49,6 +53,7 @@ export const SCREEN_TO_DV: Record<string, string> = {
   "dfa82b37-ecc0-4b21-99aa-ae50d62c4dfb": "1eb72636-f6fc-41b6-9107-775f93de1fa1", // Pending Feedback
   "1fe0a811-19bf-4dbd-a643-32ae1a067162": "f9828eb2-2c32-4a87-b7f1-fc0c8c16ac86", // Completed
   "66c003dc-0162-46f2-9b87-a7b73051a4ca": "f07f3a7f-300e-4040-b5ff-dba75493738a", // Leads
+  "857596bf-2d50-489d-9316-c5dd10b1b42d": "9cb88bfa-13b5-42e3-88dd-c7eb1f419439", // Concern - Expert TD
 };
 
 // Workflow states
@@ -59,6 +64,7 @@ export const STATE_IDS = {
   FEEDBACK_COLLECTED: "aab92dd6-46e6-4448-b61b-fe37f8727c00",
   SCHEDULING_CALL_FAILED: "b1f1ce11-fa11-4abc-9001-0000000000a1",
   FEEDBACK_CALL_FAILED: "b1f1ce11-fa11-4abc-9001-0000000000a2",
+  EXPERT_TD_SCHEDULED: "e0000000-0000-4abc-9003-000000000001",
   END_STATE: "33cce5a0-f493-4fac-a1b7-7b68fbcbffce",
 } as const;