diff --git a/resources/metadata/modifications.json b/resources/metadata/modifications.json
index 10d03595c..c3fb32279 100644
--- a/resources/metadata/modifications.json
+++ b/resources/metadata/modifications.json
@@ -46,6 +46,24 @@
         }
       ]
     },
+    "merchant-fulfillment": {
+      "0": [
+        {
+          "comment": "Remove required 'RequiresAdditionalSellerInputs', its not always present in response",
+          "action": "replace",
+          "path": "components.schemas.ShippingService.required",
+          "value": [
+            "CarrierName",
+            "Rate",
+            "ShipDate",
+            "ShippingServiceId",
+            "ShippingServiceName",
+            "ShippingServiceOfferId",
+            "ShippingServiceOptions"
+          ]
+        }
+      ]
+    },
     "orders": {
       "0": [
         {
diff --git a/resources/models/seller/merchant-fulfillment/v0.json b/resources/models/seller/merchant-fulfillment/v0.json
index 0ca91ec2d..a08f51233 100644
--- a/resources/models/seller/merchant-fulfillment/v0.json
+++ b/resources/models/seller/merchant-fulfillment/v0.json
@@ -3080,7 +3080,6 @@
                 "required": [
                     "CarrierName",
                     "Rate",
-                    "RequiresAdditionalSellerInputs",
                     "ShipDate",
                     "ShippingServiceId",
                     "ShippingServiceName",
@@ -3543,4 +3542,4 @@
         }
     },
     "x-original-swagger-version": "2.0"
-}
\ No newline at end of file
+}
diff --git a/src/Seller/MerchantFulfillmentV0/Dto/ShippingService.php b/src/Seller/MerchantFulfillmentV0/Dto/ShippingService.php
index 20e2f5b29..e1cda9900 100644
--- a/src/Seller/MerchantFulfillmentV0/Dto/ShippingService.php
+++ b/src/Seller/MerchantFulfillmentV0/Dto/ShippingService.php
@@ -41,7 +41,7 @@ final class ShippingService extends Dto
      * @param  \DateTimeInterface  $shipDate  Date-time formatted timestamp.
      * @param  CurrencyAmount  $rate  Currency type and amount.
      * @param  ShippingServiceOptions  $shippingServiceOptions  Extra services provided by a carrier.
-     * @param  bool  $requiresAdditionalSellerInputs  When true, additional seller inputs are required.
+     * @param  ?bool  $requiresAdditionalSellerInputs  When true, additional seller inputs are required.
      * @param  ?\DateTimeInterface  $earliestEstimatedDeliveryDate  Date-time formatted timestamp.
      * @param  ?\DateTimeInterface  $latestEstimatedDeliveryDate  Date-time formatted timestamp.
      * @param  ?AvailableShippingServiceOptions  $availableShippingServiceOptions  The available shipping service options.
@@ -57,7 +57,7 @@ public function __construct(
         public readonly \DateTimeInterface $shipDate,
         public readonly CurrencyAmount $rate,
         public readonly ShippingServiceOptions $shippingServiceOptions,
-        public readonly bool $requiresAdditionalSellerInputs,
+        public readonly ?bool $requiresAdditionalSellerInputs = null,
         public readonly ?\DateTimeInterface $earliestEstimatedDeliveryDate = null,
         public readonly ?\DateTimeInterface $latestEstimatedDeliveryDate = null,
         public readonly ?AvailableShippingServiceOptions $availableShippingServiceOptions = null,