diff --git a/src/api/core/ciphers.rs b/src/api/core/ciphers.rs
index a6270046..425ac6d4 100644
--- a/src/api/core/ciphers.rs
+++ b/src/api/core/ciphers.rs
@@ -512,7 +512,7 @@ pub async fn update_cipher_from_data(
             .await;
         }
 
-        nt.send_cipher_update(ut, cipher, &cipher.update_users_revision(conn).await, &headers.device.uuid).await;
+        nt.send_cipher_update(ut, cipher, &cipher.update_users_revision(conn).await, &headers.device.uuid, None).await;
     }
 
     Ok(())
@@ -702,8 +702,9 @@ async fn put_collections_update(
     data: JsonUpcase<CollectionsAdminData>,
     headers: Headers,
     conn: DbConn,
+    nt: Notify<'_>,
 ) -> EmptyResult {
-    post_collections_admin(uuid, data, headers, conn).await
+    post_collections_admin(uuid, data, headers, conn, nt).await
 }
 
 #[post("/ciphers/<uuid>/collections", data = "<data>")]
@@ -712,8 +713,9 @@ async fn post_collections_update(
     data: JsonUpcase<CollectionsAdminData>,
     headers: Headers,
     conn: DbConn,
+    nt: Notify<'_>,
 ) -> EmptyResult {
-    post_collections_admin(uuid, data, headers, conn).await
+    post_collections_admin(uuid, data, headers, conn, nt).await
 }
 
 #[put("/ciphers/<uuid>/collections-admin", data = "<data>")]
@@ -722,8 +724,9 @@ async fn put_collections_admin(
     data: JsonUpcase<CollectionsAdminData>,
     headers: Headers,
     conn: DbConn,
+    nt: Notify<'_>,
 ) -> EmptyResult {
-    post_collections_admin(uuid, data, headers, conn).await
+    post_collections_admin(uuid, data, headers, conn, nt).await
 }
 
 #[post("/ciphers/<uuid>/collections-admin", data = "<data>")]
@@ -732,6 +735,7 @@ async fn post_collections_admin(
     data: JsonUpcase<CollectionsAdminData>,
     headers: Headers,
     mut conn: DbConn,
+    nt: Notify<'_>,
 ) -> EmptyResult {
     let data: CollectionsAdminData = data.into_inner().data;
 
@@ -767,6 +771,15 @@ async fn post_collections_admin(
         }
     }
 
+    nt.send_cipher_update(
+        UpdateType::SyncCipherUpdate,
+        &cipher,
+        &cipher.update_users_revision(&mut conn).await,
+        &headers.device.uuid,
+        Some(Vec::from_iter(posted_collections)),
+    )
+    .await;
+
     log_event(
         EventType::CipherUpdatedCollections as i32,
         &cipher.uuid,
@@ -1108,6 +1121,7 @@ async fn save_attachment(
         &cipher,
         &cipher.update_users_revision(&mut conn).await,
         &headers.device.uuid,
+        None,
     )
     .await;
 
@@ -1393,7 +1407,8 @@ async fn move_cipher_selected(
         // Move cipher
         cipher.move_to_folder(data.FolderId.clone(), &user_uuid, &mut conn).await?;
 
-        nt.send_cipher_update(UpdateType::SyncCipherUpdate, &cipher, &[user_uuid.clone()], &headers.device.uuid).await;
+        nt.send_cipher_update(UpdateType::SyncCipherUpdate, &cipher, &[user_uuid.clone()], &headers.device.uuid, None)
+            .await;
     }
 
     Ok(())
@@ -1503,6 +1518,7 @@ async fn _delete_cipher_by_uuid(
             &cipher,
             &cipher.update_users_revision(conn).await,
             &headers.device.uuid,
+            None,
         )
         .await;
     } else {
@@ -1512,6 +1528,7 @@ async fn _delete_cipher_by_uuid(
             &cipher,
             &cipher.update_users_revision(conn).await,
             &headers.device.uuid,
+            None,
         )
         .await;
     }
@@ -1581,6 +1598,7 @@ async fn _restore_cipher_by_uuid(uuid: &str, headers: &Headers, conn: &mut DbCon
         &cipher,
         &cipher.update_users_revision(conn).await,
         &headers.device.uuid,
+        None,
     )
     .await;
     if let Some(org_uuid) = &cipher.organization_uuid {
@@ -1662,6 +1680,7 @@ async fn _delete_cipher_attachment_by_id(
         &cipher,
         &cipher.update_users_revision(conn).await,
         &headers.device.uuid,
+        None,
     )
     .await;
     if let Some(org_uuid) = cipher.organization_uuid {
diff --git a/src/api/notifications.rs b/src/api/notifications.rs
index 7bc502ee..76f33f7c 100644
--- a/src/api/notifications.rs
+++ b/src/api/notifications.rs
@@ -4,7 +4,7 @@ use std::{
     time::Duration,
 };
 
-use chrono::NaiveDateTime;
+use chrono::{NaiveDateTime, Utc};
 use rmpv::Value;
 use rocket::{
     futures::{SinkExt, StreamExt},
@@ -265,17 +265,28 @@ impl WebSocketUsers {
         cipher: &Cipher,
         user_uuids: &[String],
         acting_device_uuid: &String,
+        collection_uuids: Option<Vec<String>>,
     ) {
-        let user_uuid = convert_option(cipher.user_uuid.clone());
         let org_uuid = convert_option(cipher.organization_uuid.clone());
+        // Depending if there are collections provided or not, we need to have different values for the following variables.
+        // The user_uuid should be `null`, and the revision date should be set to now, else the clients won't sync the collection change.
+        let (user_uuid, collection_uuids, revision_date) = if let Some(collection_uuids) = collection_uuids {
+            (
+                Value::Nil,
+                Value::Array(collection_uuids.into_iter().map(|v| v.into()).collect::<Vec<rmpv::Value>>()),
+                serialize_date(Utc::now().naive_utc()),
+            )
+        } else {
+            (convert_option(cipher.user_uuid.clone()), Value::Nil, serialize_date(cipher.updated_at))
+        };
 
         let data = create_update(
             vec![
                 ("Id".into(), cipher.uuid.clone().into()),
                 ("UserId".into(), user_uuid),
                 ("OrganizationId".into(), org_uuid),
-                ("CollectionIds".into(), Value::Nil),
-                ("RevisionDate".into(), serialize_date(cipher.updated_at)),
+                ("CollectionIds".into(), collection_uuids),
+                ("RevisionDate".into(), revision_date),
             ],
             ut,
             Some(acting_device_uuid.into()),