diff --git a/src/app/admin/review/[productId]/page.tsx b/src/app/admin/review/[productId]/page.tsx
index 3a4469d..cb700d3 100644
--- a/src/app/admin/review/[productId]/page.tsx
+++ b/src/app/admin/review/[productId]/page.tsx
@@ -1,7 +1,7 @@
 "use client";
 
 import { useParams, useRouter, useSearchParams } from "next/navigation";
-import { Suspense, useEffect, useState } from "react";
+import { Suspense, useEffect, useRef, useState } from "react";
 
 const API_BASE = process.env.NEXT_PUBLIC_API_URL || "https://be.inatrading.co.id";
 
@@ -61,6 +61,26 @@ function extractIdChange(payload: unknown) {
     | undefined;
 }
 
+function isProductUpdateFromCompare(
+  change:
+    | {
+        oldValue?: string;
+        newValue?: string;
+        isUpdate?: boolean;
+      }
+    | undefined
+) {
+  if (!change) return false;
+  const hasDifferentIds =
+    typeof change.oldValue === "string" &&
+    typeof change.newValue === "string" &&
+    change.oldValue !== "" &&
+    change.newValue !== "" &&
+    change.oldValue !== change.newValue;
+
+  return change.isUpdate === true || hasDifferentIds;
+}
+
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 function ProductColumn({ product, label, accent }: { product: any; label: string; accent?: boolean }) {
   if (!product) return (
@@ -208,6 +228,7 @@ function AdminReviewDetailPageInner() {
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   const [oldProduct, setOldProduct] = useState<any>(null);    // original (compare)
   const [isComparison, setIsComparison] = useState(false);
+  const [isUpdateProduct, setIsUpdateProduct] = useState(false);
   const [loading, setLoading] = useState(true);
   const [loadError, setLoadError] = useState("");
 
@@ -216,6 +237,7 @@ function AdminReviewDetailPageInner() {
   const [actionSuccess, setActionSuccess] = useState("");
   const [showRejectModal, setShowRejectModal] = useState(false);
   const [rejectReason, setRejectReason] = useState("");
+  const redirectTimeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);
 
   useEffect(() => {
     if (!params.productId) return;
@@ -223,6 +245,7 @@ function AdminReviewDetailPageInner() {
     setLoadError("");
     setOldProduct(null);
     setIsComparison(false);
+    setIsUpdateProduct(false);
 
     const reviewFetch = fetch(`/api/admin/review/${params.productId}`, {
       headers: { "x-auth-token": getToken() },
@@ -254,7 +277,10 @@ function AdminReviewDetailPageInner() {
 
         setProduct(updated);
 
-        const shouldCompare = idChange?.isUpdate === true && Boolean(idChange.oldValue) && Boolean(idChange.newValue);
+        const isUpdate = isProductUpdateFromCompare(idChange);
+        setIsUpdateProduct(isUpdate);
+
+        const shouldCompare = isUpdate && Boolean(idChange?.oldValue) && Boolean(idChange?.newValue);
         setIsComparison(shouldCompare);
 
         if (shouldCompare) {
@@ -272,6 +298,14 @@ function AdminReviewDetailPageInner() {
       .finally(() => setLoading(false));
   }, [params.productId]);
 
+  useEffect(() => {
+    return () => {
+      if (redirectTimeoutRef.current) {
+        clearTimeout(redirectTimeoutRef.current);
+      }
+    };
+  }, []);
+
   async function submitReview(action: "accept" | "reject", reason?: string) {
     setActing(true);
     setActionError("");
@@ -279,7 +313,7 @@ function AdminReviewDetailPageInner() {
       const res = await fetch(`/api/admin/review/${params.productId}`, {
         method: "POST",
         headers: { "Content-Type": "application/json", "x-auth-token": getToken() },
-        body: JSON.stringify({ action, isNew: product?.isNew ?? true, reason }),
+        body: JSON.stringify({ action, isUpdate: isUpdateProduct, reason }),
       });
       const data = await res.json();
       if (!res.ok) {
@@ -287,7 +321,12 @@ function AdminReviewDetailPageInner() {
         return;
       }
       setActionSuccess(action === "accept" ? "Update produk berhasil disetujui!" : "Update produk berhasil ditolak!");
-      setTimeout(() => router.push("/admin/review"), 1800);
+      if (redirectTimeoutRef.current) {
+        clearTimeout(redirectTimeoutRef.current);
+      }
+      redirectTimeoutRef.current = setTimeout(() => {
+        router.push("/admin/review");
+      }, 1800);
     } catch {
       setActionError("Gagal terhubung ke server");
     } finally {
diff --git a/src/app/api/admin/review/[productId]/route.ts b/src/app/api/admin/review/[productId]/route.ts
index 1bd0306..9edc464 100644
--- a/src/app/api/admin/review/[productId]/route.ts
+++ b/src/app/api/admin/review/[productId]/route.ts
@@ -17,7 +17,7 @@ export async function GET(
 }
 
 // action: "accept" | "reject"
-// isNew: boolean — determines which backend endpoint to call
+// isUpdate: boolean — true for product update review, false for new product review
 // body for reject: { reason: string }
 export async function POST(
   req: NextRequest,
@@ -25,23 +25,23 @@ export async function POST(
 ) {
   const token = req.headers.get("x-auth-token") || "";
   const { productId } = await context.params;
-  const { action, isNew, reason } = await req.json();
+  const { action, isUpdate, reason } = await req.json();
 
   let url: string;
   let method = "POST";
   let body: Record<string, string> | undefined;
 
   if (action === "accept") {
-    // isNew=true: POST /product/accept/{id}
-    // isNew=false: PUT /product/accept/{id}
+    // new product review: POST /product/accept/{id}
+    // product update review: PUT /product/accept/{id}
     url = `${API_URL}/api/v1.0/product/accept/${productId}`;
-    method = isNew ? "POST" : "PUT";
+    method = isUpdate ? "PUT" : "POST";
     body = { state: "PUBLISHED" };
   } else {
-    // isNew=true: POST /product/reject/{id}
-    // isNew=false: PUT /product/reject/{id}
+    // new product review: POST /product/reject/{id}
+    // product update review: PUT /product/reject/{id}
     url = `${API_URL}/api/v1.0/product/reject/${productId}`;
-    method = isNew ? "POST" : "PUT";
+    method = isUpdate ? "PUT" : "POST";
     body = reason ? { reason, state: "REJECTED" } : { state: "REJECTED" };
   }