diff --git a/erpnext/public/js/utils.js b/erpnext/public/js/utils.js
index 93a2731..9339c5d 100755
--- a/erpnext/public/js/utils.js
+++ b/erpnext/public/js/utils.js
@@ -430,12 +430,9 @@
 					qty = row.qty;
 				}
 				row[item_field] = d.alternate_item;
-				frm.script_manager.trigger(item_field, row.doctype, row.name)
-					.then(() => {
-						frappe.model.set_value(row.doctype, row.name, 'qty', qty);
-						frappe.model.set_value(row.doctype, row.name,
-							opts.original_item_field, d.item_code);
-					});
+				frappe.model.set_value(row.doctype, row.name, 'qty', qty);
+				frappe.model.set_value(row.doctype, row.name, opts.original_item_field, d.item_code);
+				frm.trigger(item_field, row.doctype, row.name);
 			});
 
 			refresh_field(opts.child_docname);