diff --git a/api-specs/api/examples/channel-updated.example.json b/api-specs/api/examples/channel-updated.example.json
new file mode 100644
index 000000000..ff1d5b633
--- /dev/null
+++ b/api-specs/api/examples/channel-updated.example.json
@@ -0,0 +1,13 @@
+{
+  "id": "ac390383-370f-43f8-a534-db1604cb96a8",
+  "key": "commercetools",
+  "version": 2,
+  "name": {
+    "en": "New Name"
+  },
+  "roles": [
+    "InventorySupply"
+  ],
+  "createdAt": "2015-05-28T09:48:35.023Z",
+  "lastModifiedAt": "2015-06-02T09:48:35.023Z"
+}
diff --git a/api-specs/api/resources/channels.raml b/api-specs/api/resources/channels.raml
index e382fe0bf..5171fb25c 100644
--- a/api-specs/api/resources/channels.raml
+++ b/api-specs/api/resources/channels.raml
@@ -60,11 +60,48 @@ post:
     body:
       application/json:
         example: !include ../examples/channel-update.example.json
+    responses:
+      200:
+        body:
+          application/json:
+            example: !include ../examples/channel-updated.example.json
+  delete:
+    securedBy: [oauth_2_0: { scopes: ['manage_products:{projectKey}'] }]
+    description: |
+      Returns a [ReferenceExists](ctp:api:type:ReferenceExistsError) error if other resources reference the Channel to be deleted.
+    responses:
+      200:
+        body:
+          application/json:
+            example: !include ../examples/channel.example.json
+
+/key={key}:
+  (methodName): withKey
+  type:
+    baseResource:
+      uriParameterName: key
+      resourceType: Channel
+      resourceUpdateType: ChannelUpdate
+  get:
+    securedBy: [oauth_2_0: { scopes: ['view_products:{projectKey}'] }]
     responses:
       200:
         body:
           application/json:
             example: !include ../examples/channel.example.json
+  head:
+    securedBy: [oauth_2_0: { scopes: ['view_products:{projectKey}'] }]
+    description: Checks if a Channel exists for a given `key`. Returns a `200 OK` status if the Channel exists or a `404 Not Found` otherwise.
+  post:
+    securedBy: [oauth_2_0: { scopes: ['manage_products:{projectKey}'] }]
+    body:
+      application/json:
+        example: !include ../examples/channel-update.example.json
+    responses:
+      200:
+        body:
+          application/json:
+            example: !include ../examples/channel-updated.example.json
   delete:
     securedBy: [oauth_2_0: { scopes: ['manage_products:{projectKey}'] }]
     description: |
diff --git a/api-specs/graphql/schema.sdl b/api-specs/graphql/schema.sdl
index 4ce241612..ccefa4840 100644
--- a/api-specs/graphql/schema.sdl
+++ b/api-specs/graphql/schema.sdl
@@ -5571,8 +5571,20 @@ type Mutation {
     "Queries with specified key"
     key: String): Category
   createChannel(draft: ChannelDraft!): Channel
-  updateChannel(id: String!, version: Long!, actions: [ChannelUpdateAction!]!): Channel
-  deleteChannel(id: String!, version: Long!): Channel
+  updateChannel(version: Long!, actions: [ChannelUpdateAction!]!,
+
+    "Queries with specified ID"
+    id: String,
+
+    "Queries with specified key"
+    key: String): Channel
+  deleteChannel(version: Long!,
+
+    "Queries with specified ID"
+    id: String,
+
+    "Queries with specified key"
+    key: String): Channel
   createOrUpdateCustomObject(draft: CustomObjectDraft!): CustomObject
   deleteCustomObject(version: Long,