diff --git a/erpnext/accounts/doctype/shipping_rule/shipping_rule.js b/erpnext/accounts/doctype/shipping_rule/shipping_rule.js
index 1ece3e6c3dd..5c02fd2f127 100644
--- a/erpnext/accounts/doctype/shipping_rule/shipping_rule.js
+++ b/erpnext/accounts/doctype/shipping_rule/shipping_rule.js
@@ -25,6 +25,10 @@ frappe.ui.form.on("Shipping Rule", {
 	},
 	calculate_based_on: function (frm) {
 		frm.trigger("toggle_reqd");
+		if (frm.doc.calculate_based_on === "Fixed") {
+			frm.clear_table("conditions");
+			frm.refresh_field("conditions");
+		}
 	},
 	toggle_reqd: function (frm) {
 		frm.toggle_reqd("shipping_amount", frm.doc.calculate_based_on === "Fixed");
diff --git a/erpnext/accounts/doctype/shipping_rule/shipping_rule.py b/erpnext/accounts/doctype/shipping_rule/shipping_rule.py
index abbb6a58119..a2db95d03c9 100644
--- a/erpnext/accounts/doctype/shipping_rule/shipping_rule.py
+++ b/erpnext/accounts/doctype/shipping_rule/shipping_rule.py
@@ -58,6 +58,11 @@ class ShippingRule(Document):
 		self.validate_overlapping_shipping_rule_conditions()
 
 	def validate_from_to_values(self):
+		if self.calculate_based_on == "Fixed":
+			if self.conditions:
+				self.set("conditions", [])
+			return
+
 		zero_to_values = []
 
 		for d in self.get("conditions"):