diff --git a/artifacts/apidocs/schemas/api_cancel_order_request.md b/artifacts/apidocs/schemas/api_cancel_order_request.md
index 49be94f..4bd4707 100644
--- a/artifacts/apidocs/schemas/api_cancel_order_request.md
+++ b/artifacts/apidocs/schemas/api_cancel_order_request.md
@@ -6,4 +6,4 @@
     |sub_account_id<br>`sa` |string|True|The subaccount ID cancelling the order|
     |order_id<br>`oi` |string|False<br>`0`|Cancel the order with this `order_id`|
     |client_order_id<br>`co` |string|False<br>`0`|Cancel the order with this `client_order_id`|
-    |time_to_live_ms<br>`tt` |string|False<br>`500`|Specifies the time-to-live (in milliseconds) for this cancellation.<br>During this period, any order creation with a matching `client_order_id` will also be cancelled.<br>This mechanism helps mitigate time-of-flight issues where cancellations might arrive before the corresponding orders.<br>Hence, cancellation by `order_id` ignores this field as the exchange can only assign `order_id`s to already-processed order creations.<br>The duration cannot be negative, is rounded down to the nearest 100ms (e.g., `670` -> `600`, `30` -> `0`) and capped at 5 seconds (i.e., `5000`).<br>Value of `0` or omission disables the TTL mechanism, so only orders already existing in matcher state at request time will be searched.<br>|
+    |time_to_live_ms<br>`tt` |string|False<br>`'0'`|Specifies the time-to-live (in milliseconds) for this cancellation.<br>During this period, any order creation with a matching `client_order_id` will be cancelled and not be added to the GRVT matching engine.<br>This mechanism helps mitigate time-of-flight issues where cancellations might arrive before the corresponding orders.<br>Hence, cancellation by `order_id` ignores this field as the exchange can only assign `order_id`s to already-processed order creations.<br>The duration cannot be negative, is rounded down to the nearest 100ms (e.g., `'670'` -> `'600'`, `'30'` -> `'0'`) and capped at 5 seconds (i.e., `'5000'`).<br>Value of `'0'` or omission disables the TTL mechanism, so only orders already existing in matching engine state at request time will be searched.<br>If the caller requests multiple successive cancellations for a given order, such that the time-to-live windows overlap, only the first request will be considered.<br>|
diff --git a/artifacts/apidocs/trading_api.md b/artifacts/apidocs/trading_api.md
index 67893b9..dde1684 100644
--- a/artifacts/apidocs/trading_api.md
+++ b/artifacts/apidocs/trading_api.md
@@ -866,7 +866,7 @@ LITE ENDPOINT: lite/v1/cancel_order
             "sub_account_id": "'$GRVT_SUB_ACCOUNT_ID'",
             "order_id": "0x1028403",
             "client_order_id": "23042",
-            "time_to_live_ms": `500`
+            "time_to_live_ms": "500"
         }
         ```
         **Lite Request**
@@ -875,7 +875,7 @@ LITE ENDPOINT: lite/v1/cancel_order
             "sa": "'$GRVT_SUB_ACCOUNT_ID'",
             "oi": "0x1028403",
             "co": "23042",
-            "tt": `500`
+            "tt": "500"
         }
         ```
     </section>
@@ -951,7 +951,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                 "sub_account_id": "'$GRVT_SUB_ACCOUNT_ID'",
                 "order_id": "0x1028403",
                 "client_order_id": "23042",
-                "time_to_live_ms": `500`
+                "time_to_live_ms": "500"
             }
             '
             ```
@@ -968,7 +968,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                     "sub_account_id": "'$GRVT_SUB_ACCOUNT_ID'",
                     "order_id": "0x1028403",
                     "client_order_id": "23042",
-                    "time_to_live_ms": `500`
+                    "time_to_live_ms": "500"
                 },
                 "id": 123
             }
@@ -985,7 +985,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                 "sa": "'$GRVT_SUB_ACCOUNT_ID'",
                 "oi": "0x1028403",
                 "co": "23042",
-                "tt": `500`
+                "tt": "500"
             }
             '
             ```
@@ -1002,7 +1002,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                     "sa": "'$GRVT_SUB_ACCOUNT_ID'",
                     "oi": "0x1028403",
                     "co": "23042",
-                    "tt": `500`
+                    "tt": "500"
                 },
                 "i": 123
             }
@@ -1020,7 +1020,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                 "sub_account_id": "'$GRVT_SUB_ACCOUNT_ID'",
                 "order_id": "0x1028403",
                 "client_order_id": "23042",
-                "time_to_live_ms": `500`
+                "time_to_live_ms": "500"
             }
             '
             ```
@@ -1037,7 +1037,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                     "sub_account_id": "'$GRVT_SUB_ACCOUNT_ID'",
                     "order_id": "0x1028403",
                     "client_order_id": "23042",
-                    "time_to_live_ms": `500`
+                    "time_to_live_ms": "500"
                 },
                 "id": 123
             }
@@ -1054,7 +1054,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                 "sa": "'$GRVT_SUB_ACCOUNT_ID'",
                 "oi": "0x1028403",
                 "co": "23042",
-                "tt": `500`
+                "tt": "500"
             }
             '
             ```
@@ -1071,7 +1071,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                     "sa": "'$GRVT_SUB_ACCOUNT_ID'",
                     "oi": "0x1028403",
                     "co": "23042",
-                    "tt": `500`
+                    "tt": "500"
                 },
                 "i": 123
             }
@@ -1089,7 +1089,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                 "sub_account_id": "'$GRVT_SUB_ACCOUNT_ID'",
                 "order_id": "0x1028403",
                 "client_order_id": "23042",
-                "time_to_live_ms": `500`
+                "time_to_live_ms": "500"
             }
             '
             ```
@@ -1106,7 +1106,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                     "sub_account_id": "'$GRVT_SUB_ACCOUNT_ID'",
                     "order_id": "0x1028403",
                     "client_order_id": "23042",
-                    "time_to_live_ms": `500`
+                    "time_to_live_ms": "500"
                 },
                 "id": 123
             }
@@ -1123,7 +1123,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                 "sa": "'$GRVT_SUB_ACCOUNT_ID'",
                 "oi": "0x1028403",
                 "co": "23042",
-                "tt": `500`
+                "tt": "500"
             }
             '
             ```
@@ -1140,7 +1140,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                     "sa": "'$GRVT_SUB_ACCOUNT_ID'",
                     "oi": "0x1028403",
                     "co": "23042",
-                    "tt": `500`
+                    "tt": "500"
                 },
                 "i": 123
             }
@@ -1158,7 +1158,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                 "sub_account_id": "'$GRVT_SUB_ACCOUNT_ID'",
                 "order_id": "0x1028403",
                 "client_order_id": "23042",
-                "time_to_live_ms": `500`
+                "time_to_live_ms": "500"
             }
             '
             ```
@@ -1175,7 +1175,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                     "sub_account_id": "'$GRVT_SUB_ACCOUNT_ID'",
                     "order_id": "0x1028403",
                     "client_order_id": "23042",
-                    "time_to_live_ms": `500`
+                    "time_to_live_ms": "500"
                 },
                 "id": 123
             }
@@ -1192,7 +1192,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                 "sa": "'$GRVT_SUB_ACCOUNT_ID'",
                 "oi": "0x1028403",
                 "co": "23042",
-                "tt": `500`
+                "tt": "500"
             }
             '
             ```
@@ -1209,7 +1209,7 @@ LITE ENDPOINT: lite/v1/cancel_order
                     "sa": "'$GRVT_SUB_ACCOUNT_ID'",
                     "oi": "0x1028403",
                     "co": "23042",
-                    "tt": `500`
+                    "tt": "500"
                 },
                 "i": 123
             }
diff --git a/artifacts/pysdk/grvt_raw_types.py b/artifacts/pysdk/grvt_raw_types.py
index 6e5335c..249ad17 100644
--- a/artifacts/pysdk/grvt_raw_types.py
+++ b/artifacts/pysdk/grvt_raw_types.py
@@ -1807,11 +1807,12 @@ class ApiCancelOrderRequest:
     client_order_id: str | None = None
     """
     Specifies the time-to-live (in milliseconds) for this cancellation.
-    During this period, any order creation with a matching `client_order_id` will also be cancelled.
+    During this period, any order creation with a matching `client_order_id` will be cancelled and not be added to the GRVT matching engine.
     This mechanism helps mitigate time-of-flight issues where cancellations might arrive before the corresponding orders.
     Hence, cancellation by `order_id` ignores this field as the exchange can only assign `order_id`s to already-processed order creations.
-    The duration cannot be negative, is rounded down to the nearest 100ms (e.g., `670` -> `600`, `30` -> `0`) and capped at 5 seconds (i.e., `5000`).
-    Value of `0` or omission disables the TTL mechanism, so only orders already existing in matcher state at request time will be searched.
+    The duration cannot be negative, is rounded down to the nearest 100ms (e.g., `'670'` -> `'600'`, `'30'` -> `'0'`) and capped at 5 seconds (i.e., `'5000'`).
+    Value of `'0'` or omission disables the TTL mechanism, so only orders already existing in matching engine state at request time will be searched.
+    If the caller requests multiple successive cancellations for a given order, such that the time-to-live windows overlap, only the first request will be considered.
 
     """
     time_to_live_ms: str | None = None
diff --git a/src/codegen/apispec.json b/src/codegen/apispec.json
index 2273804..c8001e5 100644
--- a/src/codegen/apispec.json
+++ b/src/codegen/apispec.json
@@ -8303,15 +8303,16 @@
           "index": 3,
           "array_depth": 0,
           "optional": true,
-          "default": "500",
-          "example": "`500`",
+          "default": "'0'",
+          "example": "'500'",
           "comment": [
             "Specifies the time-to-live (in milliseconds) for this cancellation.",
-            "During this period, any order creation with a matching `client_order_id` will also be cancelled.",
+            "During this period, any order creation with a matching `client_order_id` will be cancelled and not be added to the GRVT matching engine.",
             "This mechanism helps mitigate time-of-flight issues where cancellations might arrive before the corresponding orders.",
             "Hence, cancellation by `order_id` ignores this field as the exchange can only assign `order_id`s to already-processed order creations.",
-            "The duration cannot be negative, is rounded down to the nearest 100ms (e.g., `670` -\u003e `600`, `30` -\u003e `0`) and capped at 5 seconds (i.e., `5000`).",
-            "Value of `0` or omission disables the TTL mechanism, so only orders already existing in matcher state at request time will be searched.",
+            "The duration cannot be negative, is rounded down to the nearest 100ms (e.g., `'670'` -\u003e `'600'`, `'30'` -\u003e `'0'`) and capped at 5 seconds (i.e., `'5000'`).",
+            "Value of `'0'` or omission disables the TTL mechanism, so only orders already existing in matching engine state at request time will be searched.",
+            "If the caller requests multiple successive cancellations for a given order, such that the time-to-live windows overlap, only the first request will be considered.",
             ""
           ]
         }