diff --git a/app/modules/incident/incident_helper.py b/app/modules/incident/incident_helper.py
index 959129cc..99006216 100644
--- a/app/modules/incident/incident_helper.py
+++ b/app/modules/incident/incident_helper.py
@@ -302,9 +302,9 @@ def close_incident(client, body, ack):
     # get the current chanel id and name
     channel_id = body["channel_id"]
     channel_name = body["channel_name"]
+    user_id = body["user_id"]
 
     if not channel_name.startswith("incident-"):
-        user_id = body["user_id"]
         try:
             response = client.chat_postEphemeral(
                 text=f"Channel {channel_name} is not an incident channel. Please use this command in an incident channel.",
@@ -352,6 +352,12 @@ def close_incident(client, body, ack):
         logging.error(
             "Could not archive the channel %s - %s", channel_name, response["error"]
         )
+    else:
+        # post a message that the channel has been archived by the user
+        client.chat_postMessage(
+            channel=channel_id,
+            text=f"<@{user_id}> has archived this channel 👋",
+        )
 
 
 def stale_incidents(client, body, ack):
diff --git a/app/tests/modules/incident/test_incident_helper.py b/app/tests/modules/incident/test_incident_helper.py
index c3acbb81..c1e9e0c2 100644
--- a/app/tests/modules/incident/test_incident_helper.py
+++ b/app/tests/modules/incident/test_incident_helper.py
@@ -440,7 +440,11 @@ def test_close_incident(mock_extract_id, mock_update_spreadsheet, mock_close_doc
     # Call close_incident
     incident_helper.close_incident(
         mock_client,
-        {"channel_id": "C12345", "channel_name": "incident-2024-01-12-test"},
+        {
+            "channel_id": "C12345",
+            "channel_name": "incident-2024-01-12-test",
+            "user_id": "U12345",
+        },
         mock_ack,
     )
 
@@ -479,7 +483,11 @@ def test_close_incident_no_bookmarks(
     # Call close_incident
     incident_helper.close_incident(
         mock_client,
-        {"channel_id": "C12345", "channel_name": "incident-2024-01-12-test"},
+        {
+            "channel_id": "C12345",
+            "channel_name": "incident-2024-01-12-test",
+            "user_id": "U12345",
+        },
         mock_ack,
     )
 
@@ -508,7 +516,11 @@ def test_close_incident_no_bookmarks_error(
     # Call close_incident
     incident_helper.close_incident(
         mock_client,
-        {"channel_id": "C12345", "channel_name": "incident-2024-01-12-test"},
+        {
+            "channel_id": "C12345",
+            "channel_name": "incident-2024-01-12-test",
+            "user_id": "U12345",
+        },
         mock_ack,
     )
 
@@ -622,7 +634,11 @@ def test_conversations_archive_fail(
     # Call close_incident
     incident_helper.close_incident(
         mock_client,
-        {"channel_id": "C12345", "channel_name": "incident-2024-01-12-test"},
+        {
+            "channel_id": "C12345",
+            "channel_name": "incident-2024-01-12-test",
+            "user_id": "U12345",
+        },
         mock_ack,
     )
 
@@ -669,7 +685,11 @@ def test_conversations_archive_fail_error_message(
         # Call close_incident
         incident_helper.close_incident(
             mock_client,
-            {"channel_id": "C12345", "channel_name": "incident-2024-01-12-test"},
+            {
+                "channel_id": "C12345",
+                "channel_name": "incident-2024-01-12-test",
+                "user_id": "U12345",
+            },
             mock_ack,
         )
 
@@ -687,6 +707,52 @@ def test_conversations_archive_fail_error_message(
     )
 
 
+@patch("modules.incident.incident_helper.google_drive.close_incident_document")
+@patch(
+    "modules.incident.incident_helper.google_drive.update_spreadsheet_close_incident"
+)
+@patch(
+    "integrations.google_workspace.google_docs.extract_google_doc_id",
+    return_value="dummy_document_id",
+)
+def test_conversations_archive_succeeds_post_message_who_archived(
+    mock_extract_id, mock_update_spreadsheet, mock_close_document, caplog
+):
+    mock_client = MagicMock()
+    mock_ack = MagicMock()
+    body = {
+        "channel_id": "channel_id",
+        "channel_name": "incident-channel_name",
+        "user_id": "user_id",
+    }
+    incident_helper.close_incident(mock_client, body, mock_ack)
+
+    # Mock the response of client.bookmarks_list with a valid bookmark
+    mock_client.bookmarks_list.return_value = {
+        "ok": True,
+        "bookmarks": [
+            {
+                "title": "Incident report",
+                "link": "https://docs.google.com/document/d/dummy_document_id/edit",
+            }
+        ],
+    }
+
+    # Mock the response of client.conversations_archive to indicate success
+    mock_client.conversations_archive.return_value = {
+        "ok": True,
+    }
+
+    # assert that the channel was archived
+    mock_client.conversations_archive.assert_called_once_with(channel="channel_id")
+
+    # assert message was posted to archived channel.
+    mock_client.chat_postMessage.assert_any_call(
+        text="<@user_id> has archived this channel 👋",
+        channel="channel_id",
+    )
+
+
 def test_return_channel_name_with_prefix():
     # Test the function with a string that includes the prefix.
     assert incident_helper.return_channel_name("incident-abc123") == "#abc123"