diff --git a/plugin/src/software/aws/toolkits/eclipse/amazonq/customization/CustomizationUtil.java b/plugin/src/software/aws/toolkits/eclipse/amazonq/customization/CustomizationUtil.java
new file mode 100644
index 000000000..146966144
--- /dev/null
+++ b/plugin/src/software/aws/toolkits/eclipse/amazonq/customization/CustomizationUtil.java
@@ -0,0 +1,29 @@
+// Copyright 2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.eclipse.amazonq.customization;
+
+import java.util.Map;
+import org.eclipse.lsp4j.DidChangeConfigurationParams;
+import software.aws.toolkits.eclipse.amazonq.exception.AmazonQPluginException;
+import software.aws.toolkits.eclipse.amazonq.providers.LspProvider;
+import software.aws.toolkits.eclipse.amazonq.util.PluginLogger;
+
+public final class CustomizationUtil {
+
+    private CustomizationUtil() {
+        // to avoid initiation
+    }
+
+    public static void triggerChangeConfigurationNotification(final Map<String, Object> settings) {
+        try {
+            PluginLogger.info("Sending configuration update notification to Amazon Q LSP server");
+            LspProvider.getAmazonQServer()
+            .thenAccept(server -> server.getWorkspaceService().didChangeConfiguration(new DidChangeConfigurationParams(settings)));
+        } catch (Exception e) {
+            PluginLogger.error("Error occurred while sending change configuration notification to Amazon Q LSP server", e);
+            throw new AmazonQPluginException(e);
+        }
+    }
+
+}
diff --git a/plugin/src/software/aws/toolkits/eclipse/amazonq/lsp/AmazonQLspClientImpl.java b/plugin/src/software/aws/toolkits/eclipse/amazonq/lsp/AmazonQLspClientImpl.java
index d8f4693dc..09f470537 100644
--- a/plugin/src/software/aws/toolkits/eclipse/amazonq/lsp/AmazonQLspClientImpl.java
+++ b/plugin/src/software/aws/toolkits/eclipse/amazonq/lsp/AmazonQLspClientImpl.java
@@ -3,12 +3,19 @@
 
 package software.aws.toolkits.eclipse.amazonq.lsp;
 
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
 import java.util.concurrent.CompletableFuture;
 
 import org.eclipse.lsp4e.LanguageClientImpl;
+import org.eclipse.lsp4j.ConfigurationParams;
 
+import software.aws.toolkits.eclipse.amazonq.configuration.PluginStore;
 import software.aws.toolkits.eclipse.amazonq.lsp.model.ConnectionMetadata;
 import software.aws.toolkits.eclipse.amazonq.lsp.model.SsoProfileData;
+import software.aws.toolkits.eclipse.amazonq.util.Constants;
 
 @SuppressWarnings("restriction")
 public class AmazonQLspClientImpl extends LanguageClientImpl implements AmazonQLspClient {
@@ -23,4 +30,23 @@ public final CompletableFuture<ConnectionMetadata> getConnectionMetadata() {
         return CompletableFuture.completedFuture(metadata);
     }
 
+    @Override
+    public final CompletableFuture<List<Object>> configuration(final ConfigurationParams configurationParams) {
+        if (configurationParams.getItems().size() == 0) {
+            return CompletableFuture.completedFuture(null);
+        }
+        List<Object> output = new ArrayList<>();
+        configurationParams.getItems().forEach(item -> {
+            if (item.getSection().equals(Constants.LSP_CONFIGURATION_KEY)) {
+                String customizationArn = PluginStore.get(Constants.CUSTOMIZATION_STORAGE_INTERNAL_KEY);
+                Map<String, String> customization = new HashMap<>();
+                customization.put(Constants.LSP_CUSTOMIZATION_CONFIGURATION_KEY, customizationArn);
+                output.add(customization);
+            } else {
+                output.add(null);
+            }
+        });
+        return CompletableFuture.completedFuture(output);
+    }
+
 }
diff --git a/plugin/src/software/aws/toolkits/eclipse/amazonq/util/Constants.java b/plugin/src/software/aws/toolkits/eclipse/amazonq/util/Constants.java
new file mode 100644
index 000000000..310a17e12
--- /dev/null
+++ b/plugin/src/software/aws/toolkits/eclipse/amazonq/util/Constants.java
@@ -0,0 +1,16 @@
+// Copyright 2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.eclipse.amazonq.util;
+
+public final class Constants {
+
+    private Constants() {
+        // to avoid initiation
+    }
+
+    public static final String CUSTOMIZATION_STORAGE_INTERNAL_KEY = "aws.q.customization.eclipse";
+    public static final String LSP_CUSTOMIZATION_CONFIGURATION_KEY = "customization";
+    public static final String LSP_CONFIGURATION_KEY = "aws.q";
+
+}
diff --git a/plugin/src/software/aws/toolkits/eclipse/amazonq/views/CustomizationDialog.java b/plugin/src/software/aws/toolkits/eclipse/amazonq/views/CustomizationDialog.java
index ae7d7e270..0d7f4692a 100644
--- a/plugin/src/software/aws/toolkits/eclipse/amazonq/views/CustomizationDialog.java
+++ b/plugin/src/software/aws/toolkits/eclipse/amazonq/views/CustomizationDialog.java
@@ -3,7 +3,9 @@
 
 package software.aws.toolkits.eclipse.amazonq.views;
 
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.swt.SWT;
@@ -22,13 +24,15 @@
 import org.eclipse.swt.widgets.Shell;
 import software.amazon.awssdk.utils.StringUtils;
 import software.aws.toolkits.eclipse.amazonq.configuration.PluginStore;
+import software.aws.toolkits.eclipse.amazonq.customization.CustomizationUtil;
+import software.aws.toolkits.eclipse.amazonq.util.Constants;
 import software.aws.toolkits.eclipse.amazonq.util.PluginLogger;
+import software.aws.toolkits.eclipse.amazonq.util.ThreadingUtils;
 import software.aws.toolkits.eclipse.amazonq.views.model.Customization;
 
 public final class CustomizationDialog extends Dialog {
 
     private static final String TITLE = "Amazon Q Customization";
-    public static final String CUSTOMIZATION_STORAGE_INTERNAL_KEY = "aws.q.customization.eclipse";
     private Composite container;
     private Combo combo;
     private Font magnifiedFont;
@@ -110,10 +114,14 @@ protected void createButtonsForButtonBar(final Composite parent) {
     protected void okPressed() {
         PluginLogger.info(String.format("Select pressed with responseSelection:%s and selectedArn:%s", this.responseSelection, this.selectedCustomisationArn));
         if (this.responseSelection.equals(ResponseSelection.AMAZON_Q_FOUNDATION_DEFAULT)) {
-            PluginStore.remove(CUSTOMIZATION_STORAGE_INTERNAL_KEY);
+            PluginStore.remove(Constants.CUSTOMIZATION_STORAGE_INTERNAL_KEY);
         } else {
-            // TODO: Add the logic to trigger notification to LSP server regarding change of configuration
-            PluginStore.put(CUSTOMIZATION_STORAGE_INTERNAL_KEY, this.selectedCustomisationArn);
+            PluginStore.put(Constants.CUSTOMIZATION_STORAGE_INTERNAL_KEY, this.selectedCustomisationArn);
+            Map<String, Object> updatedSettings = new HashMap<>();
+            Map<String, String> internalMap = new HashMap<>();
+            internalMap.put(Constants.LSP_CUSTOMIZATION_CONFIGURATION_KEY, this.selectedCustomisationArn);
+            updatedSettings.put(Constants.LSP_CONFIGURATION_KEY, internalMap);
+            ThreadingUtils.executeAsyncTask(() -> CustomizationUtil.triggerChangeConfigurationNotification(updatedSettings));
         }
         super.okPressed();
     }
diff --git a/plugin/src/software/aws/toolkits/eclipse/amazonq/views/actions/CustomizationDialogContributionItem.java b/plugin/src/software/aws/toolkits/eclipse/amazonq/views/actions/CustomizationDialogContributionItem.java
index ad27efe80..b33824f49 100644
--- a/plugin/src/software/aws/toolkits/eclipse/amazonq/views/actions/CustomizationDialogContributionItem.java
+++ b/plugin/src/software/aws/toolkits/eclipse/amazonq/views/actions/CustomizationDialogContributionItem.java
@@ -18,6 +18,7 @@
 import software.amazon.awssdk.utils.StringUtils;
 import software.aws.toolkits.eclipse.amazonq.configuration.PluginStore;
 import software.aws.toolkits.eclipse.amazonq.util.AuthStatusChangedListener;
+import software.aws.toolkits.eclipse.amazonq.util.Constants;
 import software.aws.toolkits.eclipse.amazonq.views.CustomizationDialog;
 import software.aws.toolkits.eclipse.amazonq.views.CustomizationDialog.ResponseSelection;
 import software.aws.toolkits.eclipse.amazonq.views.model.Customization;
@@ -65,7 +66,7 @@ public void widgetSelected(final SelectionEvent e) {
                 CustomizationDialog dialog = new CustomizationDialog(shell);
                 // TODO: This mock will be replaced by an actual call to LSP
                 dialog.setCustomisationResponse(getCustomizations());
-                String storedCustomizationArn = PluginStore.get(CustomizationDialog.CUSTOMIZATION_STORAGE_INTERNAL_KEY);
+                String storedCustomizationArn = PluginStore.get(Constants.CUSTOMIZATION_STORAGE_INTERNAL_KEY);
                 if (StringUtils.isBlank(storedCustomizationArn)) {
                     dialog.setResponseSelection(ResponseSelection.AMAZON_Q_FOUNDATION_DEFAULT);
                     dialog.setSelectedCustomizationArn(null);