diff --git a/schemas/reports/vendorForecastingReport.json b/schemas/reports/vendorForecastingReport.json
index b685a22..9b4c4a3 100644
--- a/schemas/reports/vendorForecastingReport.json
+++ b/schemas/reports/vendorForecastingReport.json
@@ -9,6 +9,7 @@
           "reportOptions": {
               "sellingProgram": "RETAIL"
           },
+          "lastUpdatedDate": "2021-06-20",
           "marketplaceIds": [
               "ATVPDKIKX0DER"
           ]
@@ -268,13 +269,14 @@
   "properties": {
     "reportSpecification": {
       "type": "object",
-      "description": "Report input summary which includes the marketplace and selling program.",
+      "description": "The report input summary which includes the marketplace, selling program, and last updated date.",
       "examples": [
         {
           "reportType": "GET_VENDOR_FORECASTING_REPORT",
           "reportOptions": {
             "sellingProgram": "RETAIL"
           },
+          "lastUpdatedDate": "2021-06-20",
           "marketplaceIds": [
             "ATVPDKIKX0DER"
           ]
@@ -283,6 +285,7 @@
       "required": [
         "reportType",
         "reportOptions",
+        "lastUpdatedDate",
         "marketplaceIds"
       ],
       "properties": {
@@ -315,6 +318,14 @@
             }
           }
         },
+        "lastUpdatedDate": {
+          "type": "string",
+          "format": "date",
+          "description": "The date when the report was last updated. Follows the <a href='https://developer-docs.amazon.com/sp-api/docs/iso-8601'>ISO 8601</a> Date format of YYYY-MM-DD.",
+          "examples": [
+            "2021-06-20"
+          ]
+        },
         "marketplaceIds": {
           "type": "array",
           "description": "This parameter must match the marketplaceId of the selling partner account. Each selling partner account belongs to only one marketplaceId.",
diff --git a/schemas/reports/vendorInventoryReport.json b/schemas/reports/vendorInventoryReport.json
index 4cb37e5..04f281a 100644
--- a/schemas/reports/vendorInventoryReport.json
+++ b/schemas/reports/vendorInventoryReport.json
@@ -1,7 +1,7 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema",
   "type": "object",
-  "description": "This report shares inventory data of a vendor's items both at an aggregated level (across the vendor's entire catalog of items) and at a per-ASIN level. Data is available at different date range aggregation levels: WEEK, MONTH, QUARTER, YEAR. Requests can span multiple date range periods. For example, if the customer specified reportPeriod=WEEK and a dataStartTime and dataEndTime that are 3 weeks apart, the report would contain data for each of those 3 contiguous weeks.",
+  "description": "This report shares inventory data of a vendor's items both at an aggregated level (across the vendor's entire catalog of items) and at a per-ASIN level. Data is available at different date range aggregation levels: DAY, WEEK, MONTH, QUARTER, YEAR. Requests can span multiple date range periods. For example, if the customer specified reportPeriod=WEEK and a dataStartTime and dataEndTime that are 3 weeks apart, the report would contain data for each of those 3 contiguous weeks.",
   "examples": [
     {
       "reportSpecification": {
@@ -11,6 +11,7 @@
           "sellingProgram": "RETAIL",
           "distributorView": "MANUFACTURING"
         },
+        "lastUpdatedDate": "2021-06-20",
         "dataStartTime": "2021-06-06",
         "dataEndTime": "2021-06-19",
         "marketplaceIds": [
@@ -257,7 +258,7 @@
   "properties": {
     "reportSpecification": {
       "type": "object",
-      "description": "Report summary including a reporting date range, distributor view, and selling program in the input.",
+      "description": "The report summary including a reporting date range, distributor view, selling program, and last updated date in the input.",
       "examples": [
         {
           "reportType": "GET_VENDOR_INVENTORY_REPORT",
@@ -266,6 +267,7 @@
             "reportPeriod": "WEEK",
             "sellingProgram": "RETAIL"
           },
+          "lastUpdatedDate": "2021-06-20",
           "dataStartTime": "2021-06-06",
           "dataEndTime": "2021-06-19",
           "marketplaceIds": [
@@ -276,6 +278,7 @@
       "required": [
         "reportType",
         "reportOptions",
+        "lastUpdatedDate",
         "dataStartTime",
         "dataEndTime",
         "marketplaceIds"
@@ -314,8 +317,9 @@
             },
             "reportPeriod": {
               "type": "string",
-              "description": "Determines what granularity of data is expected in the report. Valid values are: WEEK, MONTH, QUARTER, YEAR.",
+              "description": "Determines what granularity of data is expected in the report. Valid values are: DAY, WEEK, MONTH, QUARTER, YEAR.",
               "enum": [
+                "DAY",
                 "WEEK",
                 "MONTH",
                 "QUARTER",
@@ -332,6 +336,14 @@
             }
           }
         },
+        "lastUpdatedDate": {
+          "type": "string",
+          "format": "date",
+          "description": "The date when the report was last updated. Follows the <a href='https://developer-docs.amazon.com/sp-api/docs/iso-8601'>ISO 8601</a> Date format of YYYY-MM-DD.",
+          "examples": [
+            "2021-06-20"
+          ]
+        },
         "dataStartTime": {
           "type": "string",
           "format": "date",
diff --git a/schemas/reports/vendorNetPureProductMarginReport.json b/schemas/reports/vendorNetPureProductMarginReport.json
index 208f6a3..dfb9efd 100644
--- a/schemas/reports/vendorNetPureProductMarginReport.json
+++ b/schemas/reports/vendorNetPureProductMarginReport.json
@@ -9,6 +9,7 @@
         "reportOptions": {
           "reportPeriod": "WEEK"
         },
+        "lastUpdatedDate": "2021-06-20",
         "dataStartTime": "2021-06-06",
         "dataEndTime": "2021-06-19",
         "marketplaceIds": [
@@ -63,13 +64,14 @@
   "properties": {
     "reportSpecification": {
       "type": "object",
-      "description": "Summarizes the original report request.",
+      "description": "The report summary including the specified reporting date range and the last updated date in the input.",
       "examples": [
         {
           "reportType": "GET_VENDOR_NET_PURE_PRODUCT_MARGIN_REPORT",
           "reportOptions": {
             "reportPeriod": "WEEK"
           },
+          "lastUpdatedDate": "2021-06-20",
           "dataStartTime": "2021-06-06",
           "dataEndTime": "2021-06-19",
           "marketplaceIds": [
@@ -80,6 +82,7 @@
       "required": [
         "reportType",
         "reportOptions",
+        "lastUpdatedDate",
         "dataStartTime",
         "dataEndTime",
         "marketplaceIds"
@@ -112,6 +115,14 @@
             }
           }
         },
+        "lastUpdatedDate": {
+          "type": "string",
+          "format": "date",
+          "description": "The date when the report was last updated. Follows the <a href='https://developer-docs.amazon.com/sp-api/docs/iso-8601'>ISO 8601</a> Date format of YYYY-MM-DD.",
+          "examples": [
+            "2021-06-20"
+          ]
+        },
         "dataStartTime": {
           "type": "string",
           "format": "date",
diff --git a/schemas/reports/vendorSalesReport.json b/schemas/reports/vendorSalesReport.json
index 87f0ebf..e6bd1bc 100644
--- a/schemas/reports/vendorSalesReport.json
+++ b/schemas/reports/vendorSalesReport.json
@@ -11,6 +11,7 @@
           "reportPeriod": "WEEK",
           "sellingProgram": "RETAIL"
         },
+        "lastUpdatedDate": "2021-06-20",
         "dataStartTime": "2021-06-06",
         "dataEndTime": "2021-06-19",
         "marketplaceIds": [
@@ -148,6 +149,7 @@
           "reportPeriod": "WEEK",
           "sellingProgram": "FRESH"
         },
+        "lastUpdatedDate": "2021-06-20",
         "dataStartTime": "2021-06-06",
         "dataEndTime": "2021-06-19",
         "marketplaceIds": [
@@ -204,6 +206,7 @@
           "reportPeriod": "WEEK",
           "sellingProgram": "RETAIL"
         },
+        "lastUpdatedDate": "2021-06-20",
         "dataStartTime": "2021-06-06",
         "dataEndTime": "2021-06-12",
         "marketplaceIds": [
@@ -268,7 +271,7 @@
   "properties": {
     "reportSpecification": {
       "type": "object",
-      "description": "Report summary including reporting date range, distributor view, and selling program in the input.",
+      "description": "The report summary including reporting date range, distributor view, selling program, and last updated date in the input.",
       "examples": [
         {
           "reportType": "GET_VENDOR_SALES_REPORT",
@@ -277,6 +280,7 @@
             "reportPeriod": "WEEK",
             "sellingProgram": "RETAIL"
           },
+          "lastUpdatedDate": "2021-06-20",
           "dataStartTime": "2021-06-06",
           "dataEndTime": "2021-06-19",
           "marketplaceIds": [
@@ -287,6 +291,7 @@
       "required": [
         "reportType",
         "reportOptions",
+        "lastUpdatedDate",
         "dataStartTime",
         "dataEndTime",
         "marketplaceIds"
@@ -345,6 +350,14 @@
             }
           }
         },
+        "lastUpdatedDate": {
+          "type": "string",
+          "format": "date",
+          "description": "The date when the report was last updated. Follows the <a href='https://developer-docs.amazon.com/sp-api/docs/iso-8601'>ISO 8601</a> Date format of YYYY-MM-DD.",
+          "examples": [
+            "2021-06-20"
+          ]
+        },
         "dataStartTime": {
           "type": "string",
           "format": "date",
diff --git a/schemas/reports/vendorTrafficReport.json b/schemas/reports/vendorTrafficReport.json
index 60fd4d5..522b3c9 100644
--- a/schemas/reports/vendorTrafficReport.json
+++ b/schemas/reports/vendorTrafficReport.json
@@ -9,6 +9,7 @@
         "reportOptions": {
           "reportPeriod": "WEEK"
         },
+        "lastUpdatedDate": "2021-06-20",
         "dataStartTime": "2021-06-06",
         "dataEndTime": "2021-06-19",
         "marketplaceIds": [
@@ -51,13 +52,14 @@
   "properties": {
     "reportSpecification": {
       "type": "object",
-      "description": "Report summary including the specified reporting date range in the input.",
+      "description": "The report summary including the specified reporting date range and the last updated date in the input.",
       "examples": [
         {
           "reportType": "GET_VENDOR_TRAFFIC_REPORT",
           "reportOptions": {
             "reportPeriod": "WEEK"
           },
+          "lastUpdatedDate": "2021-06-20",
           "dataStartTime": "2021-06-06",
           "dataEndTime": "2021-06-19",
           "marketplaceIds": [
@@ -68,6 +70,7 @@
       "required": [
         "reportType",
         "reportOptions",
+        "lastUpdatedDate",
         "dataStartTime",
         "dataEndTime",
         "marketplaceIds"
@@ -105,6 +108,14 @@
             }
           }
         },
+        "lastUpdatedDate": {
+          "type": "string",
+          "format": "date",
+          "description": "The date when the report was last updated. Follows the <a href='https://developer-docs.amazon.com/sp-api/docs/iso-8601'>ISO 8601</a> date format of YYYY-MM-DD.",
+          "examples": [
+            "2021-06-20"
+          ]
+        },
         "dataStartTime": {
           "type": "string",
           "format": "date",