diff --git a/src/models/data/collectionData.ts b/src/models/data/collectionData.ts
index 5d49ae2389..cc3ef64b97 100644
--- a/src/models/data/collectionData.ts
+++ b/src/models/data/collectionData.ts
@@ -4,12 +4,14 @@ export class CollectionData {
     id: string;
     organizationId: string;
     name: string;
+    externalId: string;
     readOnly: boolean;
 
     constructor(response: CollectionDetailsResponse) {
         this.id = response.id;
         this.organizationId = response.organizationId;
         this.name = response.name;
+        this.externalId = response.externalId;
         this.readOnly = response.readOnly;
     }
 }
diff --git a/src/models/domain/collection.ts b/src/models/domain/collection.ts
index 5d308f66b3..59bbf24d07 100644
--- a/src/models/domain/collection.ts
+++ b/src/models/domain/collection.ts
@@ -9,6 +9,7 @@ export class Collection extends Domain {
     id: string;
     organizationId: string;
     name: CipherString;
+    externalId: string;
     readOnly: boolean;
 
     constructor(obj?: CollectionData, alreadyEncrypted: boolean = false) {
@@ -21,8 +22,9 @@ export class Collection extends Domain {
             id: null,
             organizationId: null,
             name: null,
+            externalId: null,
             readOnly: null,
-        }, alreadyEncrypted, ['id', 'organizationId', 'readOnly']);
+        }, alreadyEncrypted, ['id', 'organizationId', 'externalId', 'readOnly']);
     }
 
     decrypt(): Promise<CollectionView> {
diff --git a/src/models/export/collection.ts b/src/models/export/collection.ts
index 85080e39f7..d4d9c7c3b1 100644
--- a/src/models/export/collection.ts
+++ b/src/models/export/collection.ts
@@ -5,11 +5,13 @@ export class Collection {
         const req = new Collection();
         req.organizationId = '00000000-0000-0000-0000-000000000000';
         req.name = 'Collection name';
+        req.externalId = null;
         return req;
     }
 
     static toView(req: Collection, view = new CollectionView()) {
         view.name = req.name;
+        view.externalId = req.externalId;
         if (view.organizationId == null) {
             view.organizationId = req.organizationId;
         }
@@ -18,10 +20,12 @@ export class Collection {
 
     organizationId: string;
     name: string;
+    externalId: string;
 
     // Use build method instead of ctor so that we can control order of JSON stringify for pretty print
     build(o: CollectionView) {
         this.organizationId = o.organizationId;
         this.name = o.name;
+        this.externalId = o.externalId;
     }
 }
diff --git a/src/models/request/collectionRequest.ts b/src/models/request/collectionRequest.ts
index 716b0acab5..20f869567d 100644
--- a/src/models/request/collectionRequest.ts
+++ b/src/models/request/collectionRequest.ts
@@ -4,6 +4,7 @@ import { SelectionReadOnlyRequest } from './selectionReadOnlyRequest';
 
 export class CollectionRequest {
     name: string;
+    externalId: string;
     groups: SelectionReadOnlyRequest[] = [];
 
     constructor(collection?: Collection) {
@@ -11,5 +12,6 @@ export class CollectionRequest {
             return;
         }
         this.name = collection.name ? collection.name.encryptedString : null;
+        this.externalId = collection.externalId;
     }
 }
diff --git a/src/models/response/collectionResponse.ts b/src/models/response/collectionResponse.ts
index 458945334f..eb9441c4d7 100644
--- a/src/models/response/collectionResponse.ts
+++ b/src/models/response/collectionResponse.ts
@@ -5,12 +5,14 @@ export class CollectionResponse extends BaseResponse {
     id: string;
     organizationId: string;
     name: string;
+    externalId: string;
 
     constructor(response: any) {
         super(response);
         this.id = this.getResponseProperty('Id');
         this.organizationId = this.getResponseProperty('OrganizationId');
         this.name = this.getResponseProperty('Name');
+        this.externalId = this.getResponseProperty('ExternalId');
     }
 }
 
diff --git a/src/models/view/collectionView.ts b/src/models/view/collectionView.ts
index 7f4e52ed90..760992ef89 100644
--- a/src/models/view/collectionView.ts
+++ b/src/models/view/collectionView.ts
@@ -7,6 +7,7 @@ export class CollectionView implements View, ITreeNodeObject {
     id: string = null;
     organizationId: string = null;
     name: string = null;
+    externalId: string = null;
     readOnly: boolean = null;
 
     constructor(c?: Collection) {
@@ -17,5 +18,6 @@ export class CollectionView implements View, ITreeNodeObject {
         this.id = c.id;
         this.organizationId = c.organizationId;
         this.readOnly = c.readOnly;
+        this.externalId = c.externalId;
     }
 }