fix: Changed check condition and added test

erpnext/stock/doctype/stock_entry/stock_entry.js

@@ -536,7 +536,7 @@ frappe.ui.form.on('Stock Entry Detail', {
 					if(r.message) {
 						var d = locals[cdt][cdn];
 						$.each(r.message, function(k, v) {
-							d[k] = v;
+							frappe.model.set_value(cdt, cdn, k, v); // qty and it's subsequent fields weren't triggered
 						});
 						refresh_field("items");
 						erpnext.stock.select_batch_and_serial_no(frm, d);

erpnext/stock/doctype/stock_entry/stock_entry.py

@@ -27,6 +27,7 @@ class IncorrectValuationRateError(frappe.ValidationError): pass
 class DuplicateEntryForWorkOrderError(frappe.ValidationError): pass
 class OperationsNotCompleteError(frappe.ValidationError): pass
 class MaxSampleAlreadyRetainedError(frappe.ValidationError): pass
+class TotalBasicAmountZeroError(frappe.ValidationError): pass
 
 from erpnext.controllers.stock_controller import StockController
 
@@ -649,6 +650,12 @@ class StockEntry(StockController):
 		gl_entries = super(StockEntry, self).get_gl_entries(warehouse_account)
 
 		total_basic_amount = sum([flt(t.basic_amount) for t in self.get("items") if t.t_warehouse])
+
+		if self.get("additional_costs") and not total_basic_amount:
+			#If additional costs table is populated and total basic amount is
+			#somehow 0, interrupt transaction.
+			frappe.throw(_("Total Basic Amount in Items Table cannot be 0"), TotalBasicAmountZeroError)
+
 		item_account_wise_additional_cost = {}
 
 		for t in self.get("additional_costs"):
@@ -657,7 +664,7 @@ class StockEntry(StockController):
 					item_account_wise_additional_cost.setdefault((d.item_code, d.name), {})
 					item_account_wise_additional_cost[(d.item_code, d.name)].setdefault(t.expense_account, 0.0)
 					item_account_wise_additional_cost[(d.item_code, d.name)][t.expense_account] += \
-						(t.amount * d.basic_amount) / total_basic_amount if total_basic_amount else 0
+						(t.amount * d.basic_amount) / total_basic_amount
 
 		if item_account_wise_additional_cost:
 			for d in self.get("items"):

erpnext/stock/doctype/stock_entry/test_stock_entry.py

@@ -16,6 +16,7 @@ from erpnext.stock.doctype.stock_entry.stock_entry_utils import make_stock_entry
 from erpnext.accounts.doctype.account.test_account import get_inventory_account
 from erpnext.stock.doctype.stock_entry.stock_entry import move_sample_to_retention_warehouse, make_stock_in_entry
 from erpnext.stock.doctype.stock_reconciliation.stock_reconciliation import OpeningEntryAccountError
+from erpnext.stock.doctype.stock_entry.stock_entry import TotalBasicAmountZeroError
 from six import iteritems
 
 def get_sle(**args):
@@ -790,6 +791,32 @@ class TestStockEntry(unittest.TestCase):
 			filters={"voucher_type": "Stock Entry", "voucher_no": mr.name}, fieldname="is_opening")
 		self.assertEqual(is_opening, "Yes")
 
+	def test_total_basic_amount_zero(self):
+		se = frappe.get_doc({"doctype":"Stock Entry",
+		"purpose":"Material Receipt",
+		"stock_entry_type":"Material Receipt",
+		"posting_date": nowdate(),
+		"company":"_Test Company with perpetual inventory",
+		"items":[
+			{"item_code":"Basil Leaves",
+			"description":"Basil Leaves",
+			 "qty": 1,
+			 "basic_rate": 0,
+			 "uom":"Nos",
+			 "t_warehouse": "Stores - TCP1",
+			 "allow_zero_valuation_rate": 1,
+			 "cost_center": "Main - TCP1"}
+			 ],
+		"additional_costs":[
+			{"expense_account":"Miscellaneous Expenses - TCP1",
+			"amount":100,
+			"description": "miscellanous"}
+			]
+		})
+
+		se.insert()
+		self.assertRaises(TotalBasicAmountZeroError, se.submit)
+
 def make_serialized_item(item_code=None, serial_no=None, target_warehouse=None):
 	se = frappe.copy_doc(test_records[0])
 	se.get("items")[0].item_code = item_code or "_Test Serialized Item With Series"