diff --git a/erpnext/accounts/doctype/pos_closing_entry/pos_closing_entry.js b/erpnext/accounts/doctype/pos_closing_entry/pos_closing_entry.js
index 264d4a6..572410f 100644
--- a/erpnext/accounts/doctype/pos_closing_entry/pos_closing_entry.js
+++ b/erpnext/accounts/doctype/pos_closing_entry/pos_closing_entry.js
@@ -64,13 +64,15 @@
 	pos_opening_entry(frm) {
 		if (frm.doc.pos_opening_entry && frm.doc.period_start_date && frm.doc.period_end_date && frm.doc.user) {
 			reset_values(frm);
-			frm.trigger("set_opening_amounts");
-			frm.trigger("get_pos_invoices");
+			frappe.run_serially([
+				() => frm.trigger("set_opening_amounts"),
+				() => frm.trigger("get_pos_invoices")
+			]);
 		}
 	},
 
 	set_opening_amounts(frm) {
-		frappe.db.get_doc("POS Opening Entry", frm.doc.pos_opening_entry)
+		return frappe.db.get_doc("POS Opening Entry", frm.doc.pos_opening_entry)
 			.then(({ balance_details }) => {
 				balance_details.forEach(detail => {
 					frm.add_child("payment_reconciliation", {
@@ -83,7 +85,7 @@
 	},
 
 	get_pos_invoices(frm) {
-		frappe.call({
+		return frappe.call({
 			method: 'erpnext.accounts.doctype.pos_closing_entry.pos_closing_entry.get_pos_invoices',
 			args: {
 				start: frappe.datetime.get_datetime_as_string(frm.doc.period_start_date),