diff --git a/reference/shipping.v3.yml b/reference/shipping.v3.yml
index 615176e50..4f7be92a3 100644
--- a/reference/shipping.v3.yml
+++ b/reference/shipping.v3.yml
@@ -10,7 +10,8 @@ info:
     email: support@bigcommerce.com
 tags:
   - name: Customs Information
-  - name: Shipping Settings
+  - name: Global Shipping Settings
+  - name: Channel Specific Shipping Settings
 security:
   - X-Auth-Token: []
 servers:
@@ -164,10 +165,10 @@ paths:
                     type: object
                     properties: {}
       description: |-
-        Get shipping settings.
+        Get global shipping settings.
       tags:
-        - Shipping Settings
-      summary: Get Shipping Settings
+        - Global Shipping Settings
+      summary: Get Global Shipping Settings
     put:
       operationId: updateShippingSettings
       parameters:
@@ -185,16 +186,161 @@ paths:
                   meta:
                     type: object
                     properties: {}
-      summary: Update Shipping Settings
+        '400':
+          description: Bad Request. Input is invalid.
+          content:
+            application/json:
+              schema:
+                description: ''
+                type: object
+                properties:
+                  status:
+                    type: number
+                  title:
+                    type: string
+                    minLength: 1
+                  type:
+                    type: string
+                    minLength: 1
+                  detail:
+                    type: string
+                    minLength: 1
+              example:
+                status: 400
+                title: Input is invalid
+                type: 'https://developer.bigcommerce.com/api-docs/getting-started/api-status-codes'
+                detail: Syntax error
+        '422':
+          description: The request body does not meet the specification.
+          content:
+            application/json:
+              schema:
+                description: ''
+                type: object
+                properties:
+                  status:
+                    type: number
+                  title:
+                    type: string
+                    minLength: 1
+                  type:
+                    type: string
+                    minLength: 1
+              example:
+                status: 422
+                title: Input is invalid
+                type: 'https://developer.bigcommerce.com/api-docs/getting-started/api-status-codes'
+      summary: Update Global Shipping Settings
       description: |-
-        Updates shipping settings.
+        Updates global shipping settings.
       tags:
-        - Shipping Settings
+        - Global Shipping Settings
       requestBody:
         content:
           application/json:
             schema:
               $ref: '#/components/schemas/shippingSettings'
+  '/shipping/settings/channels/{channel_id}':
+    parameters:
+      - $ref: '#/components/parameters/Accept'
+      - name: channel_id
+        in: path
+        schema:
+          type: string
+        description: Channel ID
+        required: true
+
+    get:
+      operationId: getChannelShippingSettings
+      responses:
+        '200':
+          description: ''
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  data:
+                    $ref: '#/components/schemas/channelShippingSettings'
+                  meta:
+                    type: object
+                    properties: {}
+      description: |-
+        Get shipping settings for a specific channel.
+      tags:
+        - Channel Specific Shipping Settings
+      summary: Get Channel Specific Shipping Settings
+    put:
+      operationId: updateChannelShippingSettings
+      parameters:
+        - $ref: '#/components/parameters/ContentType'
+      responses:
+        '200':
+          description: ''
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  data:
+                    $ref: '#/components/schemas/channelShippingSettings'
+                  meta:
+                    type: object
+                    properties: {}
+        '400':
+          description: Bad Request. Input is invalid.
+          content:
+            application/json:
+              schema:
+                description: ''
+                type: object
+                properties:
+                  status:
+                    type: number
+                  title:
+                    type: string
+                    minLength: 1
+                  type:
+                    type: string
+                    minLength: 1
+                  detail:
+                    type: string
+                    minLength: 1
+              example:
+                status: 400
+                title: Input is invalid
+                type: 'https://developer.bigcommerce.com/api-docs/getting-started/api-status-codes'
+                detail: Syntax error
+        '422':
+          description: The request body does not meet the specification.
+          content:
+            application/json:
+              schema:
+                description: ''
+                type: object
+                properties:
+                  status:
+                    type: number
+                  title:
+                    type: string
+                    minLength: 1
+                  type:
+                    type: string
+                    minLength: 1
+              example:
+                status: 422
+                title: Input is invalid
+                type: 'https://developer.bigcommerce.com/api-docs/getting-started/api-status-codes'
+      summary: Update Channel Specific Shipping Settings
+      description: |-
+        Update shipping settings for a specific channel.
+      tags:
+        - Channel Specific Shipping Settings
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/channelShippingSettings'
 components:
   parameters:
     store_hash:
@@ -420,7 +566,17 @@ components:
                 - DISPLAY_ALL_COUNTRIES
                 - DISPLAY_ONLY_SHIPPABLE_COUNTRIES
               example: DISPLAY_ALL_COUNTRIES
-            out_of_zone_delivery_message:
+            out_of_delivery_zone_message:
+              description: Message shown to the shopper during checkout when their order does not meet the merchant's shipping criteria.
+              type: string
+              example: Unfortunately, one or more items in your cart can't be shipped to your location. Please choose a different delivery address.
+    channelShippingSettings:
+      type: object
+      properties:
+        checkout:
+          type: object
+          properties:
+            out_of_delivery_zone_message:
               description: Message shown to the shopper during checkout when their order does not meet the merchant's shipping criteria.
               type: string
               example: Unfortunately, one or more items in your cart can't be shipped to your location. Please choose a different delivery address.