diff --git a/ns_app/public/js/custom.js b/ns_app/public/js/custom.js
index 1f96856..366e39d 100644
--- a/ns_app/public/js/custom.js
+++ b/ns_app/public/js/custom.js
@@ -1 +1,44 @@
-console.log("NS App loaded");
+frappe.ready(() => {
+    const original_make_quick_entry = frappe.ui.form.make_quick_entry;
+
+    frappe.ui.form.make_quick_entry = function (doctype, after_insert, init_callback) {
+        if (doctype !== "Customer") {
+            return original_make_quick_entry.apply(this, arguments);
+        }
+
+        console.log("NS App: Custom Customer Quick Entry Loaded");
+
+        return original_make_quick_entry.call(
+            this,
+            doctype,
+            after_insert,
+            function (doc) {
+                // Defaults
+                doc.customer_group = "Commercial";
+                doc.territory = "United States";
+
+                if (init_callback) {
+                    init_callback(doc);
+                }
+            }
+        );
+    };
+});
+
+frappe.ui.form.on("Customer", {
+    onload(frm) {
+        if (!frm.is_quick_entry) return;
+
+        console.log("NS App: Modifying Quick Entry Fields");
+
+        // Remove unwanted fields
+        frm.toggle_display("customer_group", false);
+
+        // Make fields required
+        frm.set_df_property("mobile_no", "reqd", 1);
+
+        // Set default values
+        frm.set_value("territory", "United States");
+    }
+});
+