fix: Handle missing Account and Item in Opening Invoice Creation Tool

erpnext/accounts/doctype/opening_invoice_creation_tool/opening_invoice_creation_tool.py

@@ -181,7 +181,8 @@ class OpeningInvoiceCreationTool(Document):
 			"due_date": row.due_date,
 			"posting_date": row.posting_date,
 			frappe.scrub(party_type): row.party,
-			"doctype": "Sales Invoice" if self.invoice_type == "Sales" else "Purchase Invoice"
+			"doctype": "Sales Invoice" if self.invoice_type == "Sales" else "Purchase Invoice",
+			"update_stock": 0
 		})
 
 		accounting_dimension = get_accounting_dimensions()

erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py

@@ -147,6 +147,11 @@ class PurchaseInvoice(BuyingController):
 			throw(_("Conversion rate cannot be 0 or 1"))
 
 	def validate_credit_to_acc(self):
+		if not self.credit_to:
+			self.credit_to = get_party_account("Supplier", self.supplier, self.company)
+			if not self.credit_to:
+				self.raise_missing_debit_credit_account_error("Supplier", self.supplier)
+
 		account = frappe.db.get_value("Account", self.credit_to,
 			["account_type", "report_type", "account_currency"], as_dict=True)
 

erpnext/accounts/doctype/sales_invoice/sales_invoice.py

@@ -472,6 +472,11 @@ class SalesInvoice(SellingController):
 		return frappe.db.sql("select abbr from tabCompany where name=%s", self.company)[0][0]
 
 	def validate_debit_to_acc(self):
+		if not self.debit_to:
+			self.debit_to = get_party_account("Customer", self.customer, self.company)
+			if not self.debit_to:
+				self.raise_missing_debit_credit_account_error("Customer", self.customer)
+
 		account = frappe.get_cached_value("Account", self.debit_to,
 			["account_type", "report_type", "account_currency"], as_dict=True)
 

erpnext/controllers/accounts_controller.py

@@ -720,6 +720,21 @@ class AccountsController(TransactionBase):
 
 		return self._abbr
 
+	def raise_missing_debit_credit_account_error(self, party_type, party):
+		"""Raise an error if debit to/credit to account does not exist"""
+		db_or_cr = frappe.bold("Debit To") if self.doctype == "Sales Invoice" else frappe.bold("Credit To")
+		rec_or_pay = "Receivable" if self.doctype == "Sales Invoice" else "Payable"
+
+		link_to_party = frappe.utils.get_link_to_form(party_type, party)
+		link_to_company = frappe.utils.get_link_to_form("Company", self.company)
+
+		message = _("{0} Account not found against Customer {1}.").format(db_or_cr, frappe.bold(party) or '')
+		message += "<br>" + _("Please set one of the following:") + "<br>"
+		message += "<br><ul><li>" + _("'Account' in the Accounting section of Customer {0}").format(link_to_party) + "</li>"
+		message += "<li>" + _("'Default {0} Account' in Company {1}").format(rec_or_pay, link_to_company) + "</li></ul>"
+
+		frappe.throw(message, title=_("Account Missing"))
+
 	def validate_party(self):
 		party_type, party = self.get_party()
 		validate_party_frozen_disabled(party_type, party)