diff --git a/node/src/bin/manager.rs b/node/src/bin/manager.rs
index 7354e83de51..a6c3276a537 100644
--- a/node/src/bin/manager.rs
+++ b/node/src/bin/manager.rs
@@ -19,8 +19,8 @@ use graph_node::{
     MetricsContext,
 };
 use graph_store_postgres::{
-    connection_pool::ConnectionPool, BlockStore, Shard, Store, SubgraphStore, SubscriptionManager,
-    PRIMARY_SHARD,
+    connection_pool::ConnectionPool, BlockStore, NotificationSender, Shard, Store, SubgraphStore,
+    SubscriptionManager, PRIMARY_SHARD,
 };
 
 use graph_node::config::{self, Config as Cfg};
@@ -514,6 +514,10 @@ impl Context {
         self.node_id.clone()
     }
 
+    fn notification_sender(&self) -> Arc<NotificationSender> {
+        Arc::new(NotificationSender::new(self.registry.clone()))
+    }
+
     fn primary_pool(self) -> ConnectionPool {
         let primary = self.config.primary_store();
         let pool = StoreBuilder::main_pool(
@@ -750,10 +754,12 @@ async fn main() {
         Remove { name } => commands::remove::run(ctx.subgraph_store(), name),
         Create { name } => commands::create::run(ctx.subgraph_store(), name),
         Unassign { deployment } => {
-            commands::assign::unassign(ctx.primary_pool(), &deployment).await
+            let sender = ctx.notification_sender();
+            commands::assign::unassign(ctx.primary_pool(), &sender, &deployment).await
         }
         Reassign { deployment, node } => {
-            commands::assign::reassign(ctx.primary_pool(), &deployment, node)
+            let sender = ctx.notification_sender();
+            commands::assign::reassign(ctx.primary_pool(), &sender, &deployment, node)
         }
         Rewind {
             force,
diff --git a/node/src/manager/commands/assign.rs b/node/src/manager/commands/assign.rs
index 26baccd1466..aa045a1357f 100644
--- a/node/src/manager/commands/assign.rs
+++ b/node/src/manager/commands/assign.rs
@@ -1,9 +1,15 @@
-use graph::prelude::{anyhow::anyhow, Error, NodeId};
-use graph_store_postgres::{command_support::catalog, connection_pool::ConnectionPool};
+use graph::prelude::{anyhow::anyhow, Error, NodeId, StoreEvent};
+use graph_store_postgres::{
+    command_support::catalog, connection_pool::ConnectionPool, NotificationSender,
+};
 
 use crate::manager::deployment::DeploymentSearch;
 
-pub async fn unassign(primary: ConnectionPool, search: &DeploymentSearch) -> Result<(), Error> {
+pub async fn unassign(
+    primary: ConnectionPool,
+    sender: &NotificationSender,
+    search: &DeploymentSearch,
+) -> Result<(), Error> {
     let locator = search.locate_unique(&primary)?;
 
     let conn = primary.get()?;
@@ -14,13 +20,15 @@ pub async fn unassign(primary: ConnectionPool, search: &DeploymentSearch) -> Res
         .ok_or_else(|| anyhow!("failed to locate site for {locator}"))?;
 
     println!("unassigning {locator}");
-    conn.unassign_subgraph(&site)?;
+    let changes = conn.unassign_subgraph(&site)?;
+    conn.send_store_event(sender, &StoreEvent::new(changes))?;
 
     Ok(())
 }
 
 pub fn reassign(
     primary: ConnectionPool,
+    sender: &NotificationSender,
     search: &DeploymentSearch,
     node: String,
 ) -> Result<(), Error> {
@@ -33,20 +41,22 @@ pub fn reassign(
     let site = conn
         .locate_site(locator.clone())?
         .ok_or_else(|| anyhow!("failed to locate site for {locator}"))?;
-    match conn.assigned_node(&site)? {
+    let changes = match conn.assigned_node(&site)? {
         Some(cur) => {
             if cur == node {
                 println!("deployment {locator} is already assigned to {cur}");
+                vec![]
             } else {
                 println!("reassigning {locator} to {node} (was {cur})");
-                conn.reassign_subgraph(&site, &node)?;
+                conn.reassign_subgraph(&site, &node)?
             }
         }
         None => {
             println!("assigning {locator} to {node}");
-            conn.assign_subgraph(&site, &node)?;
+            conn.assign_subgraph(&site, &node)?
         }
-    }
+    };
+    conn.send_store_event(sender, &StoreEvent::new(changes))?;
 
     Ok(())
 }