diff --git a/.env.example b/.env.example
index 4916a3b..e5d9af3 100644
--- a/.env.example
+++ b/.env.example
@@ -7,10 +7,12 @@ UBER_CLIENT_SECRET=your_client_secret
 UBER_REDIRECT_URI=http://localhost:8080/api/v1/auth/uber/callback
 UBER_OAUTH_BASE_URL=https://login.uber.com
 UBER_API_BASE_URL=https://api.uber.com
+# Sandbox values when testing:
+# UBER_OAUTH_BASE_URL=https://sandbox-auth.uber.com
+# UBER_API_BASE_URL=https://test-api.uber.com
 
 # SQLite database path
 SQLITE_PATH=./data/uber_wrapper.db
 
 # Shared API key for wrapper clients (optional but recommended)
 WRAPPER_API_KEY=change-me
-
diff --git a/docs/developer-portal/01-getting-started-audit.md b/docs/developer-portal/01-getting-started-audit.md
new file mode 100644
index 0000000..4e0cd2a
--- /dev/null
+++ b/docs/developer-portal/01-getting-started-audit.md
@@ -0,0 +1,31 @@
+# 01 Getting Started Audit
+
+Source checked: Uber Eats "Getting Started" section shared by you.
+
+## Implemented Now
+
+- OAuth-based authentication foundation is present.
+- Store/menu/order/webhook modules exist.
+- Multi-merchant model is implemented.
+- Sandbox guidance updated with official sandbox domains.
+- Full menu replacement support added via `PUT /api/v1/uber/menu/replace`.
+
+## Partly Implemented
+
+- Store management:
+  Hours update exists, but typed online/offline and settings endpoints are pending.
+- Order processing:
+  Core actions exist, but full BYOC and advanced workflows are pending.
+
+## Not Yet Implemented
+
+- Written-approval and scope entitlement checks (operational process outside API code).
+- Formal quality gate automation for all production standards.
+- Full typed coverage for promotions/reporting APIs.
+
+## Current Safe Fallback
+
+For any endpoint not yet typed, use:
+
+- `POST /api/v1/uber/request`
+
diff --git a/docs/developer-portal/05-menus.md b/docs/developer-portal/05-menus.md
index cd81adf..3ca4a72 100644
--- a/docs/developer-portal/05-menus.md
+++ b/docs/developer-portal/05-menus.md
@@ -2,8 +2,11 @@
 
 Menu sync between POS and Uber Eats:
 
-- Upload/replace menu
+- Full menu replacement via PUT
 - Fetch menu from Uber
 - Item and modifier mapping strategy
 - Validation and publish error handling
 
+Current wrapper route for full replacement:
+
+- `PUT /api/v1/uber/menu/replace`
diff --git a/docs/developer-portal/10-sandbox-testing.md b/docs/developer-portal/10-sandbox-testing.md
index f0894c0..5c5358e 100644
--- a/docs/developer-portal/10-sandbox-testing.md
+++ b/docs/developer-portal/10-sandbox-testing.md
@@ -2,9 +2,20 @@
 
 Checklist:
 
+- Create a dedicated TESTING app in Uber Developer Dashboard
+- Use sandbox domains in `.env`:
+  - `UBER_OAUTH_BASE_URL=https://sandbox-auth.uber.com`
+  - `UBER_API_BASE_URL=https://test-api.uber.com`
 - Test OAuth connect flow
 - Test menu upload/get
 - Test order lifecycle actions
 - Test webhook receipt and persistence
 - Validate retry and duplicate event handling
 
+Validation sequence:
+
+1. Authentication token generation and authorized call test
+2. Store status/hours API smoke tests
+3. Full menu replacement test via PUT
+4. Order webhook receipt and lifecycle action tests
+5. Error and retry behavior checks
diff --git a/docs/openapi/openapi.json b/docs/openapi/openapi.json
index ed3a53c..6ec2fc9 100644
--- a/docs/openapi/openapi.json
+++ b/docs/openapi/openapi.json
@@ -202,6 +202,19 @@
         }
       }
     },
+    "/api/v1/uber/menu/replace": {
+      "put": {
+        "summary": "Replace store menu (full upload)",
+        "tags": [
+          "Uber Menu"
+        ],
+        "responses": {
+          "200": {
+            "description": "Menu replaced"
+          }
+        }
+      }
+    },
     "/api/v1/uber/menu": {
       "get": {
         "summary": "Fetch store menu",
diff --git a/postman/Uber_Wrapper.postman_collection.json b/postman/Uber_Wrapper.postman_collection.json
index 4023ba8..a6dc0e5 100644
--- a/postman/Uber_Wrapper.postman_collection.json
+++ b/postman/Uber_Wrapper.postman_collection.json
@@ -83,6 +83,39 @@
         }
       }
     },
+    {
+      "name": "Replace Menu (PUT)",
+      "request": {
+        "method": "PUT",
+        "header": [
+          {
+            "key": "x-api-key",
+            "value": "{{apiKey}}"
+          },
+          {
+            "key": "Content-Type",
+            "value": "application/json"
+          }
+        ],
+        "body": {
+          "mode": "raw",
+          "raw": "{\n  \"merchantId\": \"{{merchantId}}\",\n  \"storeId\": \"{{storeId}}\",\n  \"menu\": {\n    \"categories\": []\n  }\n}"
+        },
+        "url": {
+          "raw": "{{baseUrl}}/api/v1/uber/menu/replace",
+          "host": [
+            "{{baseUrl}}"
+          ],
+          "path": [
+            "api",
+            "v1",
+            "uber",
+            "menu",
+            "replace"
+          ]
+        }
+      }
+    },
     {
       "name": "Generic Uber Request",
       "request": {
@@ -135,4 +168,3 @@
     }
   ]
 }
-
diff --git a/src/modules/proxy/proxy.controller.js b/src/modules/proxy/proxy.controller.js
index 230d831..0e32be4 100644
--- a/src/modules/proxy/proxy.controller.js
+++ b/src/modules/proxy/proxy.controller.js
@@ -40,6 +40,21 @@ async function getMenu(req, res) {
   return res.json({ success: true, data });
 }
 
+async function replaceMenu(req, res) {
+  const schema = z.object({
+    merchantId: z.string().min(1),
+    storeId: z.string().min(1),
+    menu: z.any()
+  });
+  const payload = schema.parse(req.body);
+  const data = await proxyService.menuReplace({
+    merchantId: payload.merchantId,
+    storeId: payload.storeId,
+    payload: payload.menu
+  });
+  return res.json({ success: true, data });
+}
+
 async function listOrders(req, res) {
   const schema = z.object({
     merchantId: z.string().min(1),
@@ -89,9 +104,9 @@ async function updateHours(req, res) {
 module.exports = {
   genericProxy,
   upsertMenu,
+  replaceMenu,
   getMenu,
   listOrders,
   orderAction,
   updateHours
 };
-
diff --git a/src/modules/proxy/proxy.service.js b/src/modules/proxy/proxy.service.js
index ea3d0b3..4080a94 100644
--- a/src/modules/proxy/proxy.service.js
+++ b/src/modules/proxy/proxy.service.js
@@ -94,6 +94,17 @@ async function menuUpsert({ merchantId, storeId, payload }) {
   });
 }
 
+async function menuReplace({ merchantId, storeId, payload }) {
+  const uberPath = interpolatePath(uberEndpoints.menu.upsert, { storeId });
+  return callUberApi({
+    merchantId,
+    method: "PUT",
+    uberPath,
+    body: payload,
+    wrapperRoute: "/api/v1/uber/menu/replace"
+  });
+}
+
 async function menuGet({ merchantId, storeId }) {
   const uberPath = interpolatePath(uberEndpoints.menu.get, { storeId });
   return callUberApi({
@@ -153,9 +164,9 @@ async function updateStoreHours({ merchantId, storeId, payload }) {
 module.exports = {
   genericProxy,
   menuUpsert,
+  menuReplace,
   menuGet,
   ordersList,
   orderAction,
   updateStoreHours
 };
-
diff --git a/src/routes/proxy.routes.js b/src/routes/proxy.routes.js
index c1e7a6c..7fca7a0 100644
--- a/src/routes/proxy.routes.js
+++ b/src/routes/proxy.routes.js
@@ -30,6 +30,19 @@ router.post("/uber/request", asyncHandler(controller.genericProxy));
  */
 router.post("/uber/menu/upsert", asyncHandler(controller.upsertMenu));
 
+/**
+ * @openapi
+ * /api/v1/uber/menu/replace:
+ *   put:
+ *     summary: Replace store menu (full upload)
+ *     tags:
+ *       - Uber Menu
+ *     responses:
+ *       200:
+ *         description: Menu replaced
+ */
+router.put("/uber/menu/replace", asyncHandler(controller.replaceMenu));
+
 /**
  * @openapi
  * /api/v1/uber/menu:
@@ -89,4 +102,3 @@ router.post("/uber/orders/:orderId/action", asyncHandler(controller.orderAction)
 router.put("/uber/stores/hours", asyncHandler(controller.updateHours));
 
 module.exports = router;
-