diff --git a/lib/contracts/asset-contracts.ts b/lib/contracts/asset-contracts.ts
index e681142..44bb376 100644
--- a/lib/contracts/asset-contracts.ts
+++ b/lib/contracts/asset-contracts.ts
@@ -14,6 +14,7 @@ export namespace AssetContracts {
         external_id: string;
         last_modified: string;
         url: string;
+        codename: string;
         folder?: IAssetFolderReferenceContract;
     }
 
diff --git a/lib/mappers/assets-mapper.ts b/lib/mappers/assets-mapper.ts
index 151bc97..904e3d9 100644
--- a/lib/mappers/assets-mapper.ts
+++ b/lib/mappers/assets-mapper.ts
@@ -98,6 +98,7 @@ export class AssetsMapper extends BaseMapper {
             title: rawAsset.title,
             type: rawAsset.type,
             folder: rawAsset.folder,
+            codename: rawAsset.codename,
             _raw: rawAsset
         });
     }
diff --git a/lib/models/assets/asset.models.ts b/lib/models/assets/asset.models.ts
index 05262d1..87d224b 100644
--- a/lib/models/assets/asset.models.ts
+++ b/lib/models/assets/asset.models.ts
@@ -15,6 +15,7 @@ export namespace AssetModels {
         public externalId?: string;
         public lastModified!: Date;
         public url!: string;
+        public codename!: string;
         public folder?: IAssetFolderReference;
         public _raw!: AssetContracts.IAssetModelContract;
 
@@ -31,6 +32,7 @@ export namespace AssetModels {
             externalId?: string;
             lastModified: Date;
             url: string;
+            codename: string;
             folder?: IAssetFolderReference;
             _raw: AssetContracts.IAssetModelContract;
         }) {
@@ -97,6 +99,8 @@ export namespace AssetModels {
         descriptions?: IAssetFileDescription[];
         folder?: IAssetFolderReference;
         elements?: IAssetElementValueType[];
+        collection?: SharedContracts.IReferenceObjectContract;
+        codename?: String;
     }
 
     export interface IUpsertAssetRequestData {
@@ -113,6 +117,9 @@ export namespace AssetModels {
             external_id?: string;
             descriptions?: IAssetFileDescription[];
             folder?: IAssetFolderReference;
+            elements?: IAssetElementValueType[];
+            collection?: SharedContracts.IReferenceObjectContract;
+            codename?: String;
         };
         binaryFile: {
             filename: string;
diff --git a/lib/services/management-query-service.class.ts b/lib/services/management-query-service.class.ts
index 2326fd0..4548c8b 100644
--- a/lib/services/management-query-service.class.ts
+++ b/lib/services/management-query-service.class.ts
@@ -650,7 +650,10 @@ export class ManagementQueryService extends BaseManagementQueryService<any> {
                 descriptions: data.asset.descriptions,
                 external_id: data.asset.external_id,
                 folder: data.asset.folder,
-                title: data.asset.title
+                title: data.asset.title,
+                codename: data.asset.codename,
+                collection: data.asset.collection,
+                elements: data.asset.elements,
             },
             config
         );
diff --git a/test/browser/assets/add-assets.spec.ts b/test/browser/assets/add-assets.spec.ts
index fd896b3..5c1bdc3 100644
--- a/test/browser/assets/add-assets.spec.ts
+++ b/test/browser/assets/add-assets.spec.ts
@@ -11,6 +11,15 @@ describe('Add asset', () => {
             .withData((builder) => {
                 return {
                     descriptions: [],
+                    codename: 'x',
+                    collection: {
+                        codename: 'y'
+                    },
+                    external_id: 'x',
+                    folder: {
+                        id: 'x'
+                    },
+                    title: 'Title',
                     elements: [
                         builder.taxonomyElement({
                             element: {
@@ -74,6 +83,7 @@ describe('Add asset', () => {
         expect(asset.lastModified).toEqual(new Date(originalItem.last_modified));
         expect(asset.imageHeight).toEqual(originalItem.image_height);
         expect(asset.title).toEqual(originalItem.title);
+        expect(asset.codename).toEqual(originalItem.codename);
         expect(asset.externalId).toEqual(originalItem.external_id);
         expect(asset.imageWidth).toEqual(originalItem.image_width);
         expect(asset.size).toEqual(originalItem.size);
diff --git a/test/browser/assets/list-assets-items.spec.ts b/test/browser/assets/list-assets-items.spec.ts
index ff0802d..0e06d74 100644
--- a/test/browser/assets/list-assets-items.spec.ts
+++ b/test/browser/assets/list-assets-items.spec.ts
@@ -57,6 +57,7 @@ describe('List assets', () => {
             expect(m.imageWidth).toEqual(originalItem.image_width);
             expect(m.size).toEqual(originalItem.size);
             expect(m.url).toEqual(originalItem.url);
+            expect(m.codename).toEqual(originalItem.codename);
             expect(m.fileReference).toEqual(jasmine.any(AssetModels.AssetFileReference));
             expect(m.fileReference.id).toEqual(originalItem.file_reference.id);
             expect(m.fileReference.type).toEqual(originalItem.file_reference.type);
diff --git a/test/browser/assets/upsert-assets.spec.ts b/test/browser/assets/upsert-assets.spec.ts
index 3268a12..b2614e1 100644
--- a/test/browser/assets/upsert-assets.spec.ts
+++ b/test/browser/assets/upsert-assets.spec.ts
@@ -76,6 +76,7 @@ describe('Upsert asset', () => {
         expect(asset.imageHeight).toEqual(originalItem.image_height);
         expect(asset.title).toEqual(originalItem.title);
         expect(asset.externalId).toEqual(originalItem.external_id);
+        expect(asset.codename).toEqual(originalItem.codename);
         expect(asset.imageWidth).toEqual(originalItem.image_width);
         expect(asset.folder).toEqual(originalItem.folder);
         expect(asset.size).toEqual(originalItem.size);
diff --git a/test/browser/assets/view-asset.spec.ts b/test/browser/assets/view-asset.spec.ts
index 404383d..2347274 100644
--- a/test/browser/assets/view-asset.spec.ts
+++ b/test/browser/assets/view-asset.spec.ts
@@ -40,7 +40,8 @@ describe('View assets', () => {
         expect(asset.lastModified).toEqual(new Date(originalItem.last_modified));
         expect(asset.imageHeight).toEqual(originalItem.image_height);
         expect(asset.title).toEqual(originalItem.title);
-        expect(asset.externalId).toEqual(undefined);
+        expect(asset.codename).toEqual(originalItem.codename);
+        expect(asset.externalId).toEqual(originalItem.external_id);
         expect(asset.imageWidth).toEqual(originalItem.image_width);
         expect(asset.size).toEqual(originalItem.size);
         expect(asset.fileReference).toEqual(jasmine.any(AssetModels.AssetFileReference));
diff --git a/test/browser/fake-responses/assets/fake-add-asset.json b/test/browser/fake-responses/assets/fake-add-asset.json
index 50b29fd..7326cdb 100644
--- a/test/browser/fake-responses/assets/fake-add-asset.json
+++ b/test/browser/fake-responses/assets/fake-add-asset.json
@@ -1,29 +1,43 @@
 {
     "id": "fcbb12e6-66a3-4672-85d9-d502d16b8d9c",
-    "file_name": "which-brewing-fits-you-1080px.jpg",
-    "title": "Coffee Brewing Techniques",
-    "size": 125770,
+    "file_name": "file_name.jpeg",
+    "title": "Description of what the file contains",
+    "size": 148636,
     "type": "image/jpeg",
-    "image_width": 1000,
-    "image_height": 666,
+    "url": "https://assets-us-01.kc-usercontent.com/8d20758c-d74c-4f59-ae04-ee928c0816b7/adf26cd2-1acb-403f-9d1e-6d04e46c39f1/file_name.png",
+    "image_width": 1280,
+    "image_height": 548,
     "file_reference": {
-      "id": "fcbb12e6-66a3-4672-85d9-d502d16b8d9c",
-      "type": "internal"
+        "id": "fcbb12e6-66a3-4672-85d9-d502d16b8d9c",
+        "type": "internal"
+    },
+    "folder": {
+        "id": "8fe4ff47-0ca8-449d-bc63-c280efee44ea"
     },
     "descriptions": [
-      {
-        "language": {
-          "id": "00000000-0000-0000-0000-000000000000"
-        },
-        "description": "Coffee Brewing Techniques"
-      },
-      {
-        "language": {
-          "id": "d1f95fde-af02-b3b5-bd9e-f232311ccab8"
-        },
-        "description": "Técnicas para hacer café"
-      }
+        {
+            "language": {
+                "id": "00000000-0000-0000-0000-000000000000"
+            },
+            "description": "The asset's alt text in the default language describing what the file or image shows."
+        }
+    ],
+    "elements": [
+        {
+            "element": {
+                "id": "c7c3b834-2222-5677-89c4-b46f04489109"
+            },
+            "value": [
+                {
+                    "id": "53a5eecb-f295-59b4-a07d-19655b6ad860"
+                },
+                {
+                    "id": "3f367e4f-75b7-4b48-be3b-1136bbaf1f53"
+                }
+            ]
+        }
     ],
-    "external_id": "which-brewing-fits-you",
+    "codename": "xcodename",
+    "external_id": "custom-asset-identifier",
     "last_modified": "2017-09-12T08:29:36.1645977Z"
-  }
\ No newline at end of file
+}
diff --git a/test/browser/fake-responses/assets/fake-list-assets.json b/test/browser/fake-responses/assets/fake-list-assets.json
index c75181b..fc2fd2e 100644
--- a/test/browser/fake-responses/assets/fake-list-assets.json
+++ b/test/browser/fake-responses/assets/fake-list-assets.json
@@ -1,35 +1,56 @@
 {
     "assets": [
-      {
-        "descriptions": [
-          {
-            "language": {
-              "id": "00000000-0000-0000-0000-000000000000"
+        {
+            "descriptions": [
+                {
+                    "language": {
+                        "id": "00000000-0000-0000-0000-000000000000"
+                    },
+                    "description": "The asset's alt text for the default language."
+                }
+            ],
+            "elements": [
+                {
+                    "element": {
+                        "id": "c7c3b834-2222-5677-89c4-b46f04489109"
+                    },
+                    "value": [
+                        {
+                            "id": "53a5eecb-f295-59b4-a07d-19655b6ad860"
+                        },
+                        {
+                            "id": "3f367e4f-75b7-4b48-be3b-1136bbaf1f53"
+                        }
+                    ]
+                }
+            ],
+            "external_id": "custom-asset-identifier",
+            "file_name": "file_name.png",
+            "file_reference": {
+                "id": "806ec84e-7c71-4856-9519-ee3dd3558583",
+                "type": "internal"
             },
-            "description": "Alt text in default language for the asset."
-          }
-        ],
-        "external_id": "which-brewing-fits-you",
-        "file_name": "which-brewing-fits-you-1080px.jpg",
-        "file_reference": {
-          "id": "806ec84e-7c71-4856-9519-ee3dd3558583",
-          "type": "internal"
-        },
-        "folder": {
-          "id": "8fe4ff47-0ca8-449d-bc63-c280efee44ea"
-        },
-        "id": "fcbb12e6-66a3-4672-85d9-d502d16b8d9c",
-        "image_height": 666,
-        "image_width": 1000,
-        "last_modified": "2019-09-12T08:29:36.1645977Z",
-        "size": 125770,
-        "title": "Coffee brewing techniques",
-        "type": "image/jpeg",
-        "url": "https://assets-us-01.kc-usercontent.com/975bf280-fd91-488c-994c-2f04416e5ee3/fcbb12e6-66a3-4672-85d9-d502d16b8d9c/which-brewing-fits-you-1080px.jpg"
-      }
+            "folder": {
+                "id": "8fe4ff47-0ca8-449d-bc63-c280efee44ea"
+            },
+            "collection": {
+                "reference": {
+                    "codename": "first_collection"
+                }
+            },
+            "id": "fcbb12e6-66a3-4672-85d9-d502d16b8d9c",
+            "codename": "my_asset",
+            "image_height": 548,
+            "image_width": 1280,
+            "last_modified": "2019-09-12T08:29:36.1645977Z",
+            "size": 148636,
+            "title": "Makes the asset easier to find when you need it",
+            "type": "image/png",
+            "url": "https://assets-us-01.kc-usercontent.com/8d20758c-d74c-4f59-ae04-ee928c0816b7/806ec84e-7c71-4856-9519-ee3dd3558583/file_name.png"
+        }
     ],
     "pagination": {
-      "continuation_token": "+RID:~...",
-      "next_page": "https://manage.kontent.ai/v2/projects/<project_id>/<resource>?continuationToken=%2bRID%3a~..."
+        "continuation_token": "W3sidG9rZW4iOiIrUklEOn...",
+        "next_page": "https://manage.kontent.ai/v2/your/chosen/list/endpoint"
     }
-  }
\ No newline at end of file
+}
diff --git a/test/browser/fake-responses/assets/fake-upsert-asset.json b/test/browser/fake-responses/assets/fake-upsert-asset.json
index 98521a6..bbf2c43 100644
--- a/test/browser/fake-responses/assets/fake-upsert-asset.json
+++ b/test/browser/fake-responses/assets/fake-upsert-asset.json
@@ -1,32 +1,49 @@
 {
-  "id": "fcbb12e6-66a3-4672-85d9-d502d16b8d9c",
-  "file_name": "which-brewing-fits-you-1080px.jpg",
-  "title": "Coffee Brewing Techniques",
-  "size": 125770,
-  "type": "image/jpeg",
-  "folder": {
-    "external_id": "another-folder"
-  },
-  "image_width": 1000,
-  "image_height": 666,
-  "file_reference": {
     "id": "fcbb12e6-66a3-4672-85d9-d502d16b8d9c",
-    "type": "internal"
-  },
-  "descriptions": [
-    {
-      "language": {
-        "id": "00000000-0000-0000-0000-000000000000"
-      },
-      "description": "Coffee Brewing Techniques"
+    "folder": {
+        "id": "4033071a-5bc1-48da-8342-d129bb967d1d"
     },
-    {
-      "language": {
-        "id": "d1f95fde-af02-b3b5-bd9e-f232311ccab8"
-      },
-      "description": "Técnicas para hacer café"
-    }
-  ],
-  "external_id": "which-brewing-fits-you",
-  "last_modified": "2017-09-12T08:29:36.1645977Z"
-}
\ No newline at end of file
+    "file_name": "which-brewing-fits-you-1080px.jpg",
+    "title": "Coffee Brewing Techniques",
+    "size": 125770,
+    "type": "image/jpeg",
+    "url": "https://assets-us-01.kc-usercontent.com/975bf280-fd91-488c-994c-2f04416e5ee3/fcbb12e6-66a3-4672-85d9-d502d16b8d9c/which-brewing-fits-you-1080px.jpg",
+    "image_width": 1000,
+    "image_height": 666,
+    "file_reference": {
+        "id": "fcbb12e6-66a3-4672-85d9-d502d16b8d9c",
+        "type": "internal"
+    },
+    "codename": "xcodename",
+    "external_id": "xid",
+    "descriptions": [
+        {
+            "language": {
+                "id": "00000000-0000-0000-0000-000000000000"
+            },
+            "description": "Coffee Brewing Techniques"
+        },
+        {
+            "language": {
+                "id": "d1f95fde-af02-b3b5-bd9e-f232311ccab8"
+            },
+            "description": "Técnicas para hacer café"
+        }
+    ],
+    "elements": [
+        {
+            "element": {
+                "id": "c7c3b834-2222-5677-89c4-b46f04489109"
+            },
+            "value": [
+                {
+                    "id": "53a5eecb-f295-59b4-a07d-19655b6ad860"
+                },
+                {
+                    "id": "3f367e4f-75b7-4b48-be3b-1136bbaf1f53"
+                }
+            ]
+        }
+    ],
+    "last_modified": "2017-09-12T08:29:36.1645977Z"
+}
diff --git a/test/browser/fake-responses/assets/fake-view-asset.json b/test/browser/fake-responses/assets/fake-view-asset.json
index 970d9bc..207db0e 100644
--- a/test/browser/fake-responses/assets/fake-view-asset.json
+++ b/test/browser/fake-responses/assets/fake-view-asset.json
@@ -1,28 +1,48 @@
 {
-    "id": "fcbb12e6-66a3-4672-85d9-d502d16b8d9c",
-    "file_name": "which-brewing-fits-you-1080px.jpg",
-    "title": "Coffe Brewing Techniques",
-    "size": 125770,
-    "type": "image/jpeg",
-    "image_width": 1000,
-    "image_height": 666,
-    "file_reference": {
-        "id": "fcbb12e6-66a3-4672-85d9-d502d16b8d9c",
-        "type": "internal"
-    },
     "descriptions": [
         {
             "language": {
                 "id": "00000000-0000-0000-0000-000000000000"
             },
-            "description": "Coffee Brewing Techniques"
-        },
+            "description": "The asset's alt text for the default language."
+        }
+    ],
+    "elements": [
         {
-            "language": {
-                "id": "d1f95fde-af02-b3b5-bd9e-f232311ccab8"
+            "element": {
+                "id": "c7c3b834-2222-5677-89c4-b46f04489109"
             },
-            "description": "Técnicas para hacer café"
+            "value": [
+                {
+                    "id": "53a5eecb-f295-59b4-a07d-19655b6ad860"
+                },
+                {
+                    "id": "3f367e4f-75b7-4b48-be3b-1136bbaf1f53"
+                }
+            ]
         }
     ],
-    "last_modified": "2017-09-12T08:29:36.1645977Z"
-}
\ No newline at end of file
+    "external_id": "custom-asset-identifier",
+    "file_name": "file_name.png",
+    "file_reference": {
+        "id": "806ec84e-7c71-4856-9519-ee3dd3558583",
+        "type": "internal"
+    },
+    "folder": {
+        "id": "8fe4ff47-0ca8-449d-bc63-c280efee44ea"
+    },
+    "collection": {
+        "reference": {
+            "codename": "first_collection"
+        }
+    },
+    "id": "fcbb12e6-66a3-4672-85d9-d502d16b8d9c",
+    "codename": "my_asset",
+    "image_height": 548,
+    "image_width": 1280,
+    "last_modified": "2019-09-12T08:29:36.1645977Z",
+    "size": 148636,
+    "title": "Makes the asset easier to find when you need it",
+    "type": "image/png",
+    "url": "https://assets-us-01.kc-usercontent.com/8d20758c-d74c-4f59-ae04-ee928c0816b7/806ec84e-7c71-4856-9519-ee3dd3558583/file_name.png"
+}