diff --git a/erpnext/accounts/doctype/pricing_rule/utils.py b/erpnext/accounts/doctype/pricing_rule/utils.py
index fb1fbe4..bd9d0b3 100644
--- a/erpnext/accounts/doctype/pricing_rule/utils.py
+++ b/erpnext/accounts/doctype/pricing_rule/utils.py
@@ -41,10 +41,11 @@
 	if not pricing_rules: return []
 
 	if apply_multiple_pricing_rules(pricing_rules):
-		pricing_rules = sorted_by_priority(pricing_rules)
+		pricing_rules = sorted_by_priority(pricing_rules, args, doc)
 		for pricing_rule in pricing_rules:
-			pricing_rule = filter_pricing_rules(args, pricing_rule, doc)
-			if pricing_rule:
+			if isinstance(pricing_rule, list):
+				rules.extend(pricing_rule)
+			else:
 				rules.append(pricing_rule)
 	else:
 		pricing_rule = filter_pricing_rules(args, pricing_rules, doc)
@@ -53,17 +54,23 @@
 
 	return rules
 
-def sorted_by_priority(pricing_rules):
+def sorted_by_priority(pricing_rules, args, doc=None):
 	# If more than one pricing rules, then sort by priority
 	pricing_rules_list = []
 	pricing_rule_dict = {}
+
+	priority = []
 	for pricing_rule in pricing_rules:
-		if not pricing_rule.get("priority"): continue
+		pricing_rule = filter_pricing_rules(args, pricing_rule, doc)
+		if pricing_rule:
+			if not pricing_rule.get('priority'):
+				pricing_rules_list.append(pricing_rule)
+			else:
+				priority.append(cint(pricing_rule.get('priority')))
+				pricing_rule_dict.setdefault(cint(pricing_rule.get("priority")), []).append(pricing_rule)
 
-		pricing_rule_dict.setdefault(cint(pricing_rule.get("priority")), []).append(pricing_rule)
-
-	for key in sorted(pricing_rule_dict):
-		pricing_rules_list.append(pricing_rule_dict.get(key))
+	if priority:
+		pricing_rules_list.extend(pricing_rule_dict.get(min(priority)))
 
 	return pricing_rules_list or pricing_rules
 
@@ -144,9 +151,7 @@
 
 	if not apply_multiple_rule: return False
 
-	if (apply_multiple_rule
-		and len(apply_multiple_rule) == len(pricing_rules)):
-		return True
+	return True
 
 def _get_tree_conditions(args, parenttype, table, allow_blank=True):
 	field = frappe.scrub(parenttype)
@@ -264,18 +269,6 @@
 		if max_priority:
 			pricing_rules = list(filter(lambda x: cint(x.priority)==max_priority, pricing_rules))
 
-	# apply internal priority
-	all_fields = ["item_code", "item_group", "brand", "customer", "customer_group", "territory",
-		"supplier", "supplier_group", "campaign", "sales_partner", "variant_of"]
-
-	if len(pricing_rules) > 1:
-		for field_set in [["item_code", "variant_of", "item_group", "brand"],
-			["customer", "customer_group", "territory"], ["supplier", "supplier_group"]]:
-				remaining_fields = list(set(all_fields) - set(field_set))
-				if if_all_rules_same(pricing_rules, remaining_fields):
-					pricing_rules = apply_internal_priority(pricing_rules, field_set, args)
-					break
-
 	if pricing_rules and not isinstance(pricing_rules, list):
 		pricing_rules = list(pricing_rules)
 
diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index 9d9d1b3..35c6cd3 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -121,7 +121,7 @@
 
 	def before_cancel(self):
 		validate_einvoice_fields(self)
-	
+
 	def on_trash(self):
 		# delete sl and gl entries on deletion of transaction
 		if frappe.db.get_single_value('Accounts Settings', 'delete_linked_ledger_entries'):
diff --git a/erpnext/controllers/taxes_and_totals.py b/erpnext/controllers/taxes_and_totals.py
index 76309f8..452246e 100644
--- a/erpnext/controllers/taxes_and_totals.py
+++ b/erpnext/controllers/taxes_and_totals.py
@@ -616,7 +616,6 @@
 				self.doc.precision("base_write_off_amount"))
 
 	def calculate_margin(self, item):
-
 		rate_with_margin = 0.0
 		base_rate_with_margin = 0.0
 		if item.price_list_rate:
@@ -625,8 +624,8 @@
 				for d in get_applied_pricing_rules(item.pricing_rules):
 					pricing_rule = frappe.get_cached_doc('Pricing Rule', d)
 
-					if (pricing_rule.margin_type in ['Amount', 'Percentage'] and pricing_rule.currency == self.doc.currency)\
-							or (pricing_rule.margin_type == 'Percentage'):
+					if (pricing_rule.margin_rate_or_amount and pricing_rule.currency == self.doc.currency and
+						pricing_rule.margin_type in ['Amount', 'Percentage']):
 						item.margin_type = pricing_rule.margin_type
 						item.margin_rate_or_amount = pricing_rule.margin_rate_or_amount
 						has_margin = True