diff --git a/erpnext/selling/doctype/customer/customer.py b/erpnext/selling/doctype/customer/customer.py
index 7328d1d..647e8be 100644
--- a/erpnext/selling/doctype/customer/customer.py
+++ b/erpnext/selling/doctype/customer/customer.py
@@ -63,8 +63,9 @@
 		allocated_percentage = 0
 		for percentage in self.sales_team:
 			allocated_percentage += percentage.allocated_percentage
-			if allocated_percentage > 100:
-				frappe.throw(_("Total contribution percentage can't exceed 100"))
+
+		if not allocated_percentage == 100:
+			frappe.throw(_("Total contribution percentage should be equal to 100"))
 
 	def check_customer_group_change(self):
 		frappe.flags.customer_group_changed = False