diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.py b/erpnext/buying/doctype/purchase_order/purchase_order.py
index af14400..feb144d 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.py
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.py
@@ -8,7 +8,6 @@
 from frappe import msgprint, _, throw
 from frappe.model.mapper import get_mapped_doc
 from erpnext.controllers.buying_controller import BuyingController
-from erpnext.stock.doctype.item.item import get_last_purchase_details
 from erpnext.stock.stock_balance import update_bin_qty, get_ordered_qty
 from frappe.desk.notifications import clear_doctype_notifications
 
@@ -282,7 +281,7 @@
 				"parenttype": "prevdoc_doctype",
 			},
 			"postprocess": update_item,
-			"condition": lambda doc: doc.received_qty < doc.qty and doc.delivered_by_supplier!=1
+			"condition": lambda doc: abs(doc.received_qty) < abs(doc.qty) and doc.delivered_by_supplier!=1
 		},
 		"Purchase Taxes and Charges": {
 			"doctype": "Purchase Taxes and Charges",
@@ -318,7 +317,7 @@
 				"parent": "purchase_order",
 			},
 			"postprocess": update_item,
-			"condition": lambda doc: (doc.base_amount==0 or doc.billed_amt < doc.amount)
+			"condition": lambda doc: (doc.base_amount==0 or abs(doc.billed_amt) < abs(doc.amount))
 		},
 		"Purchase Taxes and Charges": {
 			"doctype": "Purchase Taxes and Charges",
diff --git a/erpnext/selling/doctype/sales_order/sales_order.py b/erpnext/selling/doctype/sales_order/sales_order.py
index d2b1653..66ca31e 100644
--- a/erpnext/selling/doctype/sales_order/sales_order.py
+++ b/erpnext/selling/doctype/sales_order/sales_order.py
@@ -384,7 +384,7 @@
 				"parent": "against_sales_order",
 			},
 			"postprocess": update_item,
-			"condition": lambda doc: doc.delivered_qty < doc.qty and doc.delivered_by_supplier!=1
+			"condition": lambda doc: abs(doc.delivered_qty) < abs(doc.qty) and doc.delivered_by_supplier!=1
 		},
 		"Sales Taxes and Charges": {
 			"doctype": "Sales Taxes and Charges",
@@ -430,7 +430,7 @@
 				"parent": "sales_order",
 			},
 			"postprocess": update_item,
-			"condition": lambda doc: doc.qty and (doc.base_amount==0 or doc.billed_amt < doc.amount)
+			"condition": lambda doc: doc.qty and (doc.base_amount==0 or abs(doc.billed_amt) < abs(doc.amount))
 		},
 		"Sales Taxes and Charges": {
 			"doctype": "Sales Taxes and Charges",
diff --git a/erpnext/stock/doctype/delivery_note/delivery_note.py b/erpnext/stock/doctype/delivery_note/delivery_note.py
index fd3742e..c5fd34f 100644
--- a/erpnext/stock/doctype/delivery_note/delivery_note.py
+++ b/erpnext/stock/doctype/delivery_note/delivery_note.py
@@ -332,7 +332,7 @@
 				"serial_no": "serial_no"
 			},
 			"postprocess": update_item,
-			"filter": lambda d: d.qty - invoiced_qty_map.get(d.name, 0)<=0
+			"filter": lambda d: abs(d.qty) - abs(invoiced_qty_map.get(d.name, 0))<=0
 		},
 		"Sales Taxes and Charges": {
 			"doctype": "Sales Taxes and Charges",
diff --git a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py
index a640e6e..b20617e 100644
--- a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py
+++ b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.py
@@ -469,7 +469,7 @@
 				"prevdoc_docname": "purchase_order",
 			},
 			"postprocess": update_item,
-			"filter": lambda d: d.qty - invoiced_qty_map.get(d.name, 0)<=0
+			"filter": lambda d: abs(d.qty) - abs(invoiced_qty_map.get(d.name, 0))<=0
 		},
 		"Purchase Taxes and Charges": {
 			"doctype": "Purchase Taxes and Charges",