fix: browser hangs while making payment entry for large number of outstaning invoices
diff --git a/erpnext/accounts/doctype/payment_entry/payment_entry.js b/erpnext/accounts/doctype/payment_entry/payment_entry.js
index 2c382c5..986457f 100644
--- a/erpnext/accounts/doctype/payment_entry/payment_entry.js
+++ b/erpnext/accounts/doctype/payment_entry/payment_entry.js
@@ -302,7 +302,7 @@
 							},
 							() => frm.set_value("party_balance", r.message.party_balance),
 							() => frm.set_value("party_name", r.message.party_name),
-							() => frm.events.get_outstanding_documents(frm),
+							() => frm.clear_table("references"),
 							() => frm.events.hide_unhide_fields(frm),
 							() => frm.events.set_dynamic_labels(frm),
 							() => {
@@ -323,9 +323,7 @@
 
 		frm.events.set_account_currency_and_balance(frm, frm.doc.paid_from,
 			"paid_from_account_currency", "paid_from_account_balance", function(frm) {
-				if (frm.doc.payment_type == "Receive") {
-					frm.events.get_outstanding_documents(frm);
-				} else if (frm.doc.payment_type == "Pay") {
+				if (frm.doc.payment_type == "Pay") {
 					frm.events.paid_amount(frm);
 				}
 			}
@@ -337,9 +335,7 @@
 
 		frm.events.set_account_currency_and_balance(frm, frm.doc.paid_to,
 			"paid_to_account_currency", "paid_to_account_balance", function(frm) {
-				if(frm.doc.payment_type == "Pay") {
-					frm.events.get_outstanding_documents(frm);
-				} else if (frm.doc.payment_type == "Receive") {
+				if (frm.doc.payment_type == "Receive") {
 					if(frm.doc.paid_from_account_currency == frm.doc.paid_to_account_currency) {
 						if(frm.doc.source_exchange_rate) {
 							frm.set_value("target_exchange_rate", frm.doc.source_exchange_rate);
@@ -533,26 +529,49 @@
 			frm.events.set_unallocated_amount(frm);
 	},
 
-	get_outstanding_documents: function(frm) {
+	get_outstanding_invoice: function(frm) {
+		const fields = [
+			{fieldtype:"Date", label: __("Posting From Date"), fieldname:"from_date"},
+			{fieldtype:"Column Break"},
+			{fieldtype:"Date", label: __("Posting To Date"), fieldname:"to_date"},
+			{fieldtype:"Section Break"},
+		];
+
+		frappe.prompt(fields, function(data){
+			frappe.flags.allocate_payment_amount = true;
+			frm.events.get_outstanding_documents(frm, data);
+		}, __("Select Date"), __("Get Outstanding Invoices"));
+	},
+
+	get_outstanding_documents: function(frm, date_args) {
 		frm.clear_table("references");
 
-		if(!frm.doc.party) return;
+		if(!frm.doc.party) {
+			return;
+		}
 
 		frm.events.check_mandatory_to_fetch(frm);
 		var company_currency = frappe.get_doc(":Company", frm.doc.company).default_currency;
 
+		var args = {
+			"posting_date": frm.doc.posting_date,
+			"company": frm.doc.company,
+			"party_type": frm.doc.party_type,
+			"payment_type": frm.doc.payment_type,
+			"party": frm.doc.party,
+			"party_account": frm.doc.payment_type=="Receive" ? frm.doc.paid_from : frm.doc.paid_to,
+			"cost_center": frm.doc.cost_center
+		}
+
+		if(date_args) {
+			args["from_date"] = date_args["from_date"];
+			args["to_date"] = date_args["to_date"];
+		}
+
 		return  frappe.call({
 			method: 'erpnext.accounts.doctype.payment_entry.payment_entry.get_outstanding_reference_documents',
 			args: {
-				args: {
-					"posting_date": frm.doc.posting_date,
-					"company": frm.doc.company,
-					"party_type": frm.doc.party_type,
-					"payment_type": frm.doc.payment_type,
-					"party": frm.doc.party,
-					"party_account": frm.doc.payment_type=="Receive" ? frm.doc.paid_from : frm.doc.paid_to,
-					"cost_center": frm.doc.cost_center
-				}
+				args:args
 			},
 			callback: function(r, rt) {
 				if(r.message) {
@@ -608,24 +627,26 @@
 
 				frm.events.allocate_party_amount_against_ref_docs(frm,
 					(frm.doc.payment_type=="Receive" ? frm.doc.paid_amount : frm.doc.received_amount));
+
+				frappe.flags.allocate_payment_amount = false;
 			}
 		});
 	},
 
-	allocate_payment_amount: function(frm) {
-		if(frm.doc.payment_type == 'Internal Transfer'){
-			return
-		}
+	// allocate_payment_amount: function(frm) {
+	// 	if(frm.doc.payment_type == 'Internal Transfer'){
+	// 		return
+	// 	}
 
-		if(frm.doc.references.length == 0){
-			frm.events.get_outstanding_documents(frm);
-		}
-		if(frm.doc.payment_type == 'Internal Transfer') {
-			frm.events.allocate_party_amount_against_ref_docs(frm, frm.doc.paid_amount);
-		} else {
-			frm.events.allocate_party_amount_against_ref_docs(frm, frm.doc.received_amount);
-		}
-	},
+	// 	if(frm.doc.references.length == 0){
+	// 		frm.events.get_outstanding_documents(frm);
+	// 	}
+	// 	if(frm.doc.payment_type == 'Internal Transfer') {
+	// 		frm.events.allocate_party_amount_against_ref_docs(frm, frm.doc.paid_amount);
+	// 	} else {
+	// 		frm.events.allocate_party_amount_against_ref_docs(frm, frm.doc.received_amount);
+	// 	}
+	// },
 
 	allocate_party_amount_against_ref_docs: function(frm, paid_amount) {
 		var total_positive_outstanding_including_order = 0;
@@ -677,7 +698,7 @@
 
 		$.each(frm.doc.references || [], function(i, row) {
 			row.allocated_amount = 0 //If allocate payment amount checkbox is unchecked, set zero to allocate amount
-			if(frm.doc.allocate_payment_amount){
+			if(frappe.flags.allocate_payment_amount){
 				if(row.outstanding_amount > 0 && allocated_positive_outstanding > 0) {
 					if(row.outstanding_amount >= allocated_positive_outstanding) {
 						row.allocated_amount = allocated_positive_outstanding;
@@ -958,7 +979,7 @@
 							},
 							() => {
 								if(frm.doc.payment_type != "Internal") {
-									frm.events.get_outstanding_documents(frm);
+									frm.clear_table("references");
 								}
 							}
 						]);
diff --git a/erpnext/accounts/doctype/payment_entry/payment_entry.json b/erpnext/accounts/doctype/payment_entry/payment_entry.json
index fcaa570..4950bd1 100644
--- a/erpnext/accounts/doctype/payment_entry/payment_entry.json
+++ b/erpnext/accounts/doctype/payment_entry/payment_entry.json
@@ -325,19 +325,17 @@
    "reqd": 1
   },
   {
-   "collapsible": 1,
-   "collapsible_depends_on": "references",
+   "collapsible": 0,
+   "collapsible_depends_on": "",
    "depends_on": "eval:(doc.party && doc.paid_from && doc.paid_to && doc.paid_amount && doc.received_amount)",
    "fieldname": "section_break_14",
    "fieldtype": "Section Break",
    "label": "Reference"
   },
   {
-   "default": "1",
-   "depends_on": "eval:in_list(['Pay', 'Receive'], doc.payment_type)",
-   "fieldname": "allocate_payment_amount",
-   "fieldtype": "Check",
-   "label": "Allocate Payment Amount"
+   "fieldname": "get_outstanding_invoice",
+   "fieldtype": "Button",
+   "label": "Get Outstanding Invoice"
   },
   {
    "fieldname": "references",
diff --git a/erpnext/accounts/doctype/payment_entry/payment_entry.py b/erpnext/accounts/doctype/payment_entry/payment_entry.py
index ea76126..bb0d44e 100644
--- a/erpnext/accounts/doctype/payment_entry/payment_entry.py
+++ b/erpnext/accounts/doctype/payment_entry/payment_entry.py
@@ -574,8 +574,8 @@
 	# Get negative outstanding sales /purchase invoices
 	negative_outstanding_invoices = []
 	if args.get("party_type") not in ["Student", "Employee"] and not args.get("voucher_no"):
-		negative_outstanding_invoices = get_negative_outstanding_invoices(args.get("party_type"),
-			args.get("party"), args.get("party_account"), party_account_currency, company_currency)
+		negative_outstanding_invoices = get_negative_outstanding_invoices(args.get("party_type"), args.get("party"),
+			args.get("party_account"), args.get("company"), party_account_currency, company_currency)
 
 	# Get positive outstanding sales /purchase invoices/ Fees
 	condition = ""
@@ -585,10 +585,16 @@
 
 	# Add cost center condition
 	if args.get("cost_center") and get_allow_cost_center_in_entry_of_bs_account():
-			condition += " and cost_center='%s'" % args.get("cost_center")
+		condition += " and cost_center='%s'" % args.get("cost_center")
+
+	if args.get("from_date") and args.get("to_date"):
+		condition += " and posting_date between '{0}' and '{1}'".format(args.get("from_date"), args.get("to_date"))
+
+	if args.get("company"):
+		condition += " and company = '{0}'".format(frappe.db.escape(args.get("company")))
 
 	outstanding_invoices = get_outstanding_invoices(args.get("party_type"), args.get("party"),
-		args.get("party_account"), condition=condition)
+		args.get("party_account"), condition=condition, limit=100)
 
 	for d in outstanding_invoices:
 		d["exchange_rate"] = 1
@@ -606,12 +612,13 @@
 	orders_to_be_billed = []
 	if (args.get("party_type") != "Student"):
 		orders_to_be_billed =  get_orders_to_be_billed(args.get("posting_date"),args.get("party_type"),
-			args.get("party"), party_account_currency, company_currency)
+			args.get("party"), args.get("company"), party_account_currency, company_currency)
 
 	return negative_outstanding_invoices + outstanding_invoices + orders_to_be_billed
 
 
-def get_orders_to_be_billed(posting_date, party_type, party, party_account_currency, company_currency, cost_center=None):
+def get_orders_to_be_billed(posting_date, party_type, party,
+	company, party_account_currency, company_currency, cost_center=None):
 	if party_type == "Customer":
 		voucher_type = 'Sales Order'
 	elif party_type == "Supplier":
@@ -641,6 +648,7 @@
 			where
 				{party_type} = %s
 				and docstatus = 1
+				and company = %s
 				and ifnull(status, "") != "Closed"
 				and {ref_field} > advance_paid
 				and abs(100 - per_billed) > 0.01
@@ -652,7 +660,7 @@
 			"voucher_type": voucher_type,
 			"party_type": scrub(party_type),
 			"condition": condition
-		}), party, as_dict=True)
+		}), (party, company), as_dict=True)
 
 	order_list = []
 	for d in orders:
@@ -663,7 +671,8 @@
 
 	return order_list
 
-def get_negative_outstanding_invoices(party_type, party, party_account, party_account_currency, company_currency, cost_center=None):
+def get_negative_outstanding_invoices(party_type, party, party_account,
+	company, party_account_currency, company_currency, cost_center=None):
 	voucher_type = "Sales Invoice" if party_type == "Customer" else "Purchase Invoice"
 	supplier_condition = ""
 	if voucher_type == "Purchase Invoice":
@@ -684,7 +693,8 @@
 		from
 			`tab{voucher_type}`
 		where
-			{party_type} = %s and {party_account} = %s and docstatus = 1 and outstanding_amount < 0
+			{party_type} = %s and {party_account} = %s and docstatus = 1 and
+			company = %s and outstanding_amount < 0
 			{supplier_condition}
 		order by
 			posting_date, name
@@ -696,7 +706,7 @@
 			"party_type": scrub(party_type),
 			"party_account": "debit_to" if party_type == "Customer" else "credit_to",
 			"cost_center": cost_center
-		}), (party, party_account), as_dict=True)
+		}), (party, party_account, company), as_dict=True)
 
 
 @frappe.whitelist()
diff --git a/erpnext/accounts/utils.py b/erpnext/accounts/utils.py
index 7a1f6c5..d186178 100644
--- a/erpnext/accounts/utils.py
+++ b/erpnext/accounts/utils.py
@@ -632,6 +632,10 @@
 	outstanding_invoices = []
 	precision = frappe.get_precision("Sales Invoice", "outstanding_amount") or 2
 
+	limit_cond = ''
+	if limit:
+		limit_cond = " limit {}".format(limit)
+
 	if erpnext.get_party_account_type(party_type) == 'Receivable':
 		dr_or_cr = "debit_in_account_currency - credit_in_account_currency"
 		payment_dr_or_cr = "credit_in_account_currency - debit_in_account_currency"
@@ -673,11 +677,11 @@
 			and account = %(account)s
 			and {payment_dr_or_cr} > 0
 			and against_voucher is not null and against_voucher != ''
-		group by against_voucher_type, against_voucher
-	""".format(payment_dr_or_cr=payment_dr_or_cr), {
+		group by against_voucher_type, against_voucher {limit_cond}
+	""".format(payment_dr_or_cr=payment_dr_or_cr, limit_cond= limit_cond), {
 		"party_type": party_type,
 		"party": party,
-		"account": account,
+		"account": account
 	}, as_dict=True)
 
 	pe_map = frappe._dict()