diff --git a/erpnext/accounts/doctype/payment_entry/payment_entry.py b/erpnext/accounts/doctype/payment_entry/payment_entry.py
index 0e07abd7255c..02a144d3e79f 100644
--- a/erpnext/accounts/doctype/payment_entry/payment_entry.py
+++ b/erpnext/accounts/doctype/payment_entry/payment_entry.py
@@ -3,6 +3,7 @@
 
 
 import json
+from functools import reduce
 
 import frappe
 from frappe import ValidationError, _, scrub, throw
@@ -1523,6 +1524,10 @@ def get_payment_entry(dt, dn, party_amount=None, bank_account=None, bank_amount=
 	pe.received_amount = received_amount
 	pe.letter_head = doc.get("letter_head")
 
+	if dt in ['Purchase Order', 'Sales Order', 'Sales Invoice', 'Purchase Invoice']:
+		pe.project = (doc.get('project') or
+			reduce(lambda prev,cur: prev or cur, [x.get('project') for x in doc.get('items')], None)) # get first non-empty project from items
+
 	if pe.party_type in ["Customer", "Supplier"]:
 		bank_account = get_party_bank_account(pe.party_type, pe.party)
 		pe.set("bank_account", bank_account)