fix: unique variant based on
diff --git a/erpnext/stock/doctype/item/item.py b/erpnext/stock/doctype/item/item.py
index 8761f4e..e93e7d9 100644
--- a/erpnext/stock/doctype/item/item.py
+++ b/erpnext/stock/doctype/item/item.py
@@ -725,7 +725,7 @@
_('Cannot change Attributes after stock transaction. Make a new Item and transfer stock to the new Item'))
def validate_variant_based_on_change(self):
- if self.variant_of or (self.has_variants and frappe.get_all("Item", {"variant_of": self.name})):
+ if not self.is_new() and (self.variant_of or (self.has_variants and frappe.get_all("Item", {"variant_of": self.name}))):
if self.variant_based_on != frappe.db.get_value("Item", self.name, "variant_based_on"):
frappe.throw(_("Variant Based On cannot be changed"))