diff --git a/models/vendor-shipments-api-model/vendorShipments.json b/models/vendor-shipments-api-model/vendorShipments.json
index 9e56e34..7b6e62c 100644
--- a/models/vendor-shipments-api-model/vendorShipments.json
+++ b/models/vendor-shipments-api-model/vendorShipments.json
@@ -241,17 +241,18 @@
                 "description": "Unique request reference identifier."
               }
             },
-            "x-amazon-spds-sandbox-behaviors": [
-              {
-                "request": {
-                  "parameters": {
-                    "body": {
-                      "value": {
-                        "shipmentConfirmations": [
-                          {
-                            "shipmentIdentifier": "TestShipmentConfirmation202",
-                            "shipmentConfirmationDate": "2021-03-11T12:38:23.388Z",
-                            "sellingParty": {
+            "x-amzn-api-sandbox": {
+              "static": [
+                {
+                  "request": {
+                    "parameters": {
+                      "body": {
+                        "value": {
+                          "shipmentConfirmations": [
+                            {
+                              "shipmentIdentifier": "TestShipmentConfirmation202",
+                              "shipmentConfirmationDate": "2021-03-11T12:38:23.388Z",
+                              "sellingParty": {
                               "partyId": "ABCD1"
                             },
                             "shipFromParty": {
@@ -297,7 +298,8 @@
                   }
                 }
               }
-            ]
+              ]
+            }
           },
           "400": {
             "description": "Request has missing or invalid parameters and cannot be parsed.",
@@ -351,7 +353,7 @@
             "headers": {
               "x-amzn-RateLimit-Limit": {
                 "type": "string",
-                "description": "Your rate limit (requests per second) for this operation."
+                "description": "Your rate limit (requests per second) for this operation.\n_Note:_ For this status code, the rate limit header is deprecated and no longer returned."
               },
               "x-amzn-RequestId": {
                 "type": "string",
@@ -367,7 +369,7 @@
             "headers": {
               "x-amzn-RateLimit-Limit": {
                 "type": "string",
-                "description": "Your rate limit (requests per second) for this operation."
+                "description": "Your rate limit (requests per second) for this operation.\n_Note:_ For this status code, the rate limit header is deprecated and no longer returned."
               },
               "x-amzn-RequestId": {
                 "type": "string",
@@ -383,7 +385,7 @@
             "headers": {
               "x-amzn-RateLimit-Limit": {
                 "type": "string",
-                "description": "Your rate limit (requests per second) for this operation."
+                "description": "Your rate limit (requests per second) for this operation.\n_Note:_ For this status code, the rate limit header is deprecated and no longer returned."
               },
               "x-amzn-RequestId": {
                 "type": "string",
@@ -399,7 +401,7 @@
             "headers": {
               "x-amzn-RateLimit-Limit": {
                 "type": "string",
-                "description": "Your rate limit (requests per second) for this operation."
+                "description": "Your rate limit (requests per second) for this operation.\n_Note:_ For this status code, the rate limit header is deprecated and no longer returned."
               },
               "x-amzn-RequestId": {
                 "type": "string",
@@ -415,7 +417,7 @@
             "headers": {
               "x-amzn-RateLimit-Limit": {
                 "type": "string",
-                "description": "Your rate limit (requests per second) for this operation."
+                "description": "Your rate limit (requests per second) for this operation.\n_Note:_ For this status code, the rate limit header is deprecated and no longer returned."
               },
               "x-amzn-RequestId": {
                 "type": "string",